Forex, stocks, crypto, options and commodities – what you trade, as opposed to how.

Spencer Li

What Is the Real Risk of Selling Covered Calls?

The real covered call risk - options

On shares you want to keep, the premium hides two risks

Published: 16 October 2026 · Last updated: 9 October 2026 · By Spencer Li, CFTe

“Beginner covered-call writing: I don’t see what’s so risky here.” That was the title of a question on Reddit’s options forum, and it is a fair one. You own 100 shares, you sell someone the right to buy them from you at a higher price, and you collect a premium for it. If the shares never get there, you keep the cash and the shares. So where is the risk?

Here is the short answer. A covered call keeps almost all of the downside of the shares and caps the upside at the strike price. The premium is small next to either. In a crash, you still take the fall, cushioned by a percent or two. And on shares you want to keep for years, you have sold away the sharp rally that would have made your year, for roughly what one month of waiting pays.

Both risks are easy to miss, because a covered call wins in most ordinary months.

Covered calls keep the downside, cap the upside. Summary card for the post: What Is the Real Risk of Selling Covered Calls?.

Why does a covered call look so safe?

Let me give it its due first.

Compared with owning the shares on their own, a covered call is a little less risky. The premium arrives on day one, and it is yours whatever the stock does next. If the stock drifts sideways for the month, the covered call simply wins. You collected something for holding shares that went nowhere.

That is why it feels like free money. A run of small, steady gains is easy to show, month after month, and the rare bad month is easy to scroll past. Each month looks like a success on its own.

But a strategy that wins most months can still lose you the year. To see how, it helps to put real numbers on one trade.

What happens to a covered call when the stock moves a lot?

Here is a hypothetical example with round numbers. You own 100 shares of a stock at USD 50. You sell one call with a strike of 55, expiring in a month, for USD 0.80 a share. One contract covers 100 shares, so you collect 1.6% of the shares’ value, today.

Now picture three different months.

Stock price at expiryShares aloneShares plus covered callWhat happened
USD 52, a quiet month+4.0%+5.6%You keep the shares and the premium
USD 65, good news lands+30.0%+11.6%Your shares are called away at 55
USD 40, a bad month−20.0%−18.4%The premium cushions 1.6 points of the fall

Read the table from the bottom up.

In the bad month, you lose almost as much as someone who did nothing. The premium paid for 1.6 points of a 20-point drop, and that is the whole of the protection.

In the good month, the stock ran to 65 and your shares left at 55. You gave up USD 9.20 a share of gain (65 minus 55, less the 0.80 you were paid) to collect USD 0.80. At 0.80 a month, that is about 11 months of premium, handed over in a single month.

One good month can cost you nearly a year of premiums.

This is what the guide to options trading means when it says a covered call keeps every loss and gives away every big win. Neither half shows up in a calm month, which is exactly when most people try it for the first time.

What if I want to keep the shares when the call goes in the money?

This is where most of the regret shows up.

Say the stock is at 65 a few days before expiry, and these are shares you planned to hold for a decade. You have two ways to keep them. Both cost money.

The first is to buy back the call. With the stock at 65, the right to buy at 55 is worth at least USD 10 a share, so you pay 10 to close a trade that paid you 0.80. Your shares are still yours, now worth 65. Add it up and you are up 5.80 a share, the same as if they had been called away. The cap does not go anywhere. You just pay it in cash instead of in shares.

The second is to “roll” the call. You buy back the old one and sell a new one further out in time, at a higher strike, usually for a small credit. A roll is two trades: a loss you lock in today, and a fresh promise to sell tomorrow. If the stock keeps climbing, you can roll several times and stack up real losses on the calls while the shares rise on paper, which is how a trade meant to pay a little ends up costing a lot.

People do this because selling a winner they love feels worse than a loss they can hide inside a roll. The fear of missing the next leg up is doing the trading.

Can a covered call be assigned before expiry?

Yes. The usual trigger is a dividend.

US-listed stock options can be exercised on any business day, not only at expiry. The Options Industry Council puts it plainly: “All standardized equity options use American-style exercise.” When someone exercises, the clearing house assigns the notice at random to a broker with sellers on its books, and the broker then picks among its own customers, so you cannot know in advance whether it will be you.

The dividend is what makes early exercise worth it to the buyer. In the Council’s words, “A call holder is entitled to the dividend if the holder exercises the call prior to the ex-dividend date.” So when your call is deep in the money, with little time value left, and an ex-dividend date is close, the buyer has a reason to exercise the day before, and you find out when the shares are gone. They leave at the strike, and the dividend you were counting on leaves with them. What to do when that happens is in what happens when an option is assigned.

The Keep, Cap, Collect test

Before selling a call on shares you hold, write down three numbers.

  1. Keep. How far could the shares fall in a bad month? That is the risk you keep in full.
  2. Cap. How far could they rise in a great month? Everything above the strike is what you sell.
  3. Collect. The premium, as a percentage of the shares.

In the example, Keep was the full 20% fall, Cap began at the strike, 10% above the price, and Collect was 1.6%. When Collect is tiny next to both Keep and Cap, the trade is paying you very little to carry two risks at once.

Payoff of shares plus a covered call: below the 55 strike it falls with the shares; above it the line goes flat, and the red wedge is the upside sold away
A covered call keeps almost all of the downside and caps the upside at the strike.

Then ask one more question. Would you be happy to sell these shares at the strike this month? If yes, the covered call does what it says, and you are being paid to place a sell order you wanted anyway. If no, the Cap is the risk that will hurt, because it lands on exactly the shares you care about most.

Personally, I think that is the honest way to frame a covered call. It is a decision to sell your shares at a set price, and a small payment for making the promise.

If you would rather start with the part we do teach, our free 15-Minute Swing Trader’s Checklist has the daily routine and the questions to ask before any trade. Get the free checklist →

Is a covered call worse than simply owning the shares?

It depends on the month. Nobody gets to pick the month.

Sideways and slowly rising markets favour the covered call. Strong rallies punish it, because that is where the cap bites. Crashes treat both about the same, since a percent or two of premium does little against a 20% fall.

So the covered call does not lower your risk in any way that matters in a bad year. It changes the shape of your returns: more small wins, smaller big wins, and the same big losses. Your position size is still 100 shares, with the full risk of 100 shares. The sizing rules in our money and risk management guide apply in full, premium or no premium.

Covered calls are also one half of the wheel strategy, which runs them in a loop with cash-secured puts, so the same two risks travel with it.

Which shares in your account would you be glad to sell at a higher price this month? And which would you regret selling? A covered call belongs only on the first list.

FAQ

Is selling covered calls risky?

Yes, in a way the premium hides. You keep nearly the full downside of the shares and give up everything above the strike, while the premium is usually a percent or two. In a crash you still take the fall, and in a big rally your shares are sold at the strike.

What is the maximum loss on a covered call?

The maximum loss is the price you paid for the shares minus the premium, if the stock goes to zero. In the example above, that is USD 50 minus 0.80, or USD 49.20 a share.

What happens when a covered call is assigned?

You sell 100 shares per contract at the strike price and keep the premium. If you wanted to keep the shares, you have to buy them back at the market price.

Can I lose the dividend on a covered call?

Yes. If the buyer exercises the call before the ex-dividend date, your shares are gone before the dividend is paid, and the buyer collects it instead of you.

Does Synapse Trading teach covered calls?

No, we do not teach options at the moment. We teach end-of-day swing trading in shares, forex and ETFs, and the chart-reading and sizing carry over to whatever product you use.

Go deeper

This post covers one corner of options. If you would rather start with what we do teach, the free 15-Minute Swing Trader’s Checklist has the daily routine, the questions to ask before every trade, and the five rules that keep you in the game.

About the author. Spencer Li is The 15-Minute Trader and the founder of Synapse Trading. He is a Certified Financial Technician (CFTe) with 15+ years of trading, run from 70+ countries. He holds a B.Acc and B.BM from SMU. Every trade he takes is public, dated, losses left in. He teaches low-risk swing trading in 15 minutes a day, one system for any market.

Educational content only, not personalised financial advice. Trading carries risk, including loss of capital. Past performance is not indicative of future results. Synapse Trading is not licensed or regulated by MAS.

by
Spencer Li

What Happens When an Option Is Assigned or Expires in the Money?

Option assigned at expiry? - options

Close, roll or take it: the three choices, and what each one costs

Published: 16 October 2026 · Last updated: 11 October 2026 · By Spencer Li, CFTe

If you sell options for long enough, one morning you wake up owning shares you never meant to buy. A recent post on Reddit’s options forum said it in four words: “Got assigned 100 MSFT.”

In short, when a US stock option finishes in the money at expiry, it is usually exercised automatically, and a seller on the other side is assigned at random. If you bought the option, you end up buying or selling 100 shares per contract at the strike. If you sold it, you are the one who has to sell or buy those shares, and with US stock options that can happen before expiry too. Before it gets there, you have three choices: close the option, roll it to a later date, or take the assignment and manage the shares. Each one has a cost. None of them undoes the loss already sitting in the position.

Close, roll or take it: the loss is still there. Summary card for the post: What Happens When an Option Is Assigned or Expires in the Money?.

What does it mean when an option is assigned?

Two words do most of the work here. The buyer of an option “exercises” it, which means using the right to buy or sell. The seller on the other side is then “assigned”, which means being told to deliver on the promise.

Who gets assigned is a lottery. The Options Industry Council, the education arm of the US options industry, says “OCC randomly assigns exercise notices to its clearing members who, in turn assign their customers.” So two people who sold the same option can have different weekends.

You holdIt finishes in the moneyWhat happens to you
A bought callExercisedYou buy 100 shares per contract at the strike
A bought putExercisedYou sell 100 shares per contract at the strike, or go short if you owned none
A sold callAssignedYou sell 100 shares per contract at the strike, or go short if you owned none
A sold putAssignedYou buy 100 shares per contract at the strike

What happens at expiry if I do nothing?

At expiry, the clearing house exercises equity options that finish at least a cent in the money, unless it is told otherwise. The Council lists the threshold for equity options as “$.01 per contract in-the-money in the customer account”, in a procedure it calls exercise by exception. It also adds a warning worth reading twice: “your firm may have a different threshold.” So check your own broker’s rule before expiry week, never after.

This catches more people on the buying side than you might expect. Say you bought one call with a strike of 150, and it finishes at 151. You did not plan to own the stock. But one contract exercised means you now buy 100 shares at 150, which is USD 15,000 of stock, whether or not the cash is in your account.

Most options never get this far. According to the Council, “more than 72% of all option contracts are closed out in the market prior to expiration,” another 22% expire worthless, and only about 6% are exercised. The people in that 6% who did not plan to be there are the ones writing the panicked posts.

One more thing for anyone trading from Singapore. A US stock option that expires on a Friday stops trading at the New York close, which is around 4 am or 5 am on Saturday here, depending on the season. Whatever you decide has to be decided before you go to sleep on Friday night.

My option went against me. Should I close, roll or take it?

A hypothetical example, with round numbers. You sold a put with a strike of 50 on a stock at 55, and collected USD 1.20 a share. The stock has since fallen to 45, a few days before expiry. The put is now worth about 5, so on paper you are down 3.80 a share.

You have three choices.

ChoiceWhat you doWhat happens to the lossThe risk you hold next
CloseBuy back the put at about 5Locked in at 3.80 a shareNone
RollBuy back the put, and sell a later oneLocked in, then offset by the new premiumA new sold put, often for longer
Take itLet assignment happenMoves into the shares100 shares per contract, bought at 50

Look at the middle column. The 3.80 is there in every row. Closing makes it real today. Rolling makes it real today and then collects a new premium against a new risk. Taking the shares turns it into a loss on stock bought at 50 that now trades at 45, plus the full risk of owning those shares from here.

Three equal red blocks, each marked 3.80, above the three choices close, roll and take it
Close, roll or take the shares: the 3.80 loss is there in every choice.

So the choice is never really about the loss. It is about which risk you want to carry next.

Why does rolling feel better than it is?

Rolling for a credit feels like being paid to wait. You buy back the losing put, sell a new one three months out, and the new one brings in more than the old one cost. The screen says you collected money, and the relief is real.

But a roll is two trades. The first is a closed loss. The second is a fresh promise to buy the same shares, for longer, while the stock is already falling. If the stock recovers, rolling looks clever. If it keeps falling, you roll again, and again, each time with a bigger hole and a longer clock.

The trader who rolls three times has not avoided the loss. He has made the same bet four times, and kept the fear of it alive for a season.

The clean-sheet test

Here is the one question that cuts through all three choices. I call it the clean-sheet test.

Imagine you had no position at all today, and the cash was sitting in your account. Would you open the new trade you are about to hold?

  • If you are thinking of taking the shares, would you buy 100 shares of this stock at 45 today, with a plan for where you would sell if you were wrong? If yes, taking assignment can make sense. If no, you are holding the shares to avoid admitting the loss.
  • If you are thinking of rolling, would you sell that new put today, at that strike and that date, as a fresh trade? If no, the roll is a way to hide the loss rather than a trade you actually want.
  • If neither passes, close. It is the least exciting answer, and often the cheapest one.

Personally, I think this is the same discipline that applies to any losing trade, in any market. The loss happened when the stock fell. What you do next is a new decision, and it deserves a clean sheet.

The clean-sheet habit is one we teach for shares, forex and ETFs too. Our free 15-Minute Swing Trader’s Checklist has the daily routine and the questions to ask before any trade. Get the free checklist →

Can I be assigned before expiry?

Yes. The Council says “All standardized equity options use American-style exercise,” which means the buyer can exercise on any day the market is open, not only at the end.

Early assignment is rare while an option still has time value, because the buyer would throw that value away by exercising. It becomes likely when your sold option is deep in the money with little time value left. Dividends are the classic trigger. In the Council’s words, “A call holder is entitled to the dividend if the holder exercises the call prior to the ex-dividend date.” So when your sold call is deep in the money the day before an ex-dividend date, the odds of being assigned are high. It is one of the two risks in the real risk of selling covered calls.

There is one rarer case worth knowing, because it caught out one Reddit trader in September. When a company is bought for cash, the terms of its options can be adjusted, and the expiry date can be brought forward to soon after the deal closes. One trader wrote that he had bought LEAPS for 2027 and 2028, and woke to find the expiry moved to the following week. If a company you hold options on is in a merger, read the adjustment notice for that ticker before you decide anything.

Which of your open options would you be unhappy to see exercised tonight? And if you had a clean sheet, would you open that position again today? Those two answers usually tell you whether to close, roll or take it.

To see where assignment fits in the bigger picture, the guide to options trading maps the main structures and the real risk of each.

FAQ

What happens if my option is assigned?

If you sold a call, you sell 100 shares per contract at the strike. If you sold a put, you buy 100 shares per contract at the strike. You keep the premium you collected in both cases.

Are in-the-money options exercised automatically at expiry?

Yes, in most cases. The US clearing house exercises equity options that finish at least a cent in the money, unless you or your broker instruct otherwise, and your broker may use a different threshold.

Is it better to close or roll a losing option?

Close it unless the new position passes the clean-sheet test. A roll locks in the current loss and opens a fresh trade, so it only makes sense if you would open that new trade today with no position at all.

Can I be assigned early on a covered call?

Yes. US stock options can be exercised on any trading day, and the risk rises when your call is deep in the money just before an ex-dividend date.

Does Synapse Trading teach options?

No, we do not teach options at the moment. We teach end-of-day swing trading in shares, forex and ETFs, and the habit of judging each position on a clean sheet applies to every one of them.

Go deeper

This post covers one corner of options. If you would rather start with what we do teach, the free 15-Minute Swing Trader’s Checklist has the daily routine, the questions to ask before every trade, and the five rules that keep you in the game.

About the author. Spencer Li is The 15-Minute Trader and the founder of Synapse Trading. He is a Certified Financial Technician (CFTe) with 15+ years of trading, run from 70+ countries. He holds a B.Acc and B.BM from SMU. Every trade he takes is public, dated, losses left in. He teaches low-risk swing trading in 15 minutes a day, one system for any market.

Educational content only, not personalised financial advice. Trading carries risk, including loss of capital. Past performance is not indicative of future results. Synapse Trading is not licensed or regulated by MAS.

by
Spencer Li

Checklist Before Buying a Stock: 7 Questions to Ask in 60 Seconds

Check before buying a stock - investing

Pilots and surgeons pause before the risky part. Here is the same pause for the moment you click buy

Published: 17 October 2026 · Last updated: 8 August 2026 · By Spencer Li, CFTe

Before a plane takes off, the pilots stop and run a short list, even after thousands of flights. They are not forgetful. They simply know that skilled people still miss simple steps when they are busy, confident or in a hurry. Buying a stock is the same.

So here is a short checklist to run before you buy any stock, framed as seven things to answer. It takes about a minute.

  1. Trade or investment
  2. The point that proves me wrong
  3. What a loss costs my whole account
  4. What is scheduled before I sell
  5. How easily I can get out
  6. How much I already hold in this area
  7. Why today

If any answer is unclear, you are not ready to buy. The stock will still be there tomorrow. Below, I go through why each question is on the list, and what a good answer looks like.

A seven-line checklist with six answers ticked and one unclear, so the buy button stays greyed out: not ready
If any answer on the checklist is unclear, you are not ready to buy.

Unclear answer? You are not ready to buy. Summary card for the post: Checklist Before Buying a Stock: 7 Questions to Ask in 60 Seconds.

Why use a checklist before buying a stock?

Because the mistakes that hurt most are rarely about knowledge. They are about skipping something you already knew.

Atul Gawande wrote a whole book on this, The Checklist Manifesto. At one US hospital, doctors were given a simple five-step list for putting in a central line, the kind of thing every one of them already knew how to do. The ten-day infection rate “went from 11 percent to zero.”

Nobody learned anything new. They just stopped skipping steps.

Gawande also explains what makes a checklist work. It needs a clear pause point, a moment when you stop and run it. It should be short, ideally “between five and nine items.” And it should take about a minute, because “after about sixty to ninety seconds at a given pause point, the checklist often becomes a distraction.”

So the pause point for an investor or a trader is obvious. It is the moment before you click buy.

Plenty of people ask about this. A trader asked on Reddit: “is there a checklist you follow before choosing to swing trade/invest in a stock?” Most answers listed research steps, like checking earnings and debt. Those matter, but they belong earlier in the process. The list below is what you check at the door.

What are the 7 questions to ask before buying a stock?

Here they are again, with the reason each one is on the list.

1. Is this a trade or an investment?

This one comes first because it changes every other answer. A trade is held for days or weeks and exits on a chart level. An investment is held for years and exits when the business story changes. Many painful losses start life as a short trade that slowly turned into a long-term investment, because the person holding it could not bear to take a loss and kept finding reasons to wait.

Decide which it is now, and write it down.

2. What would prove me wrong, and will I act on it?

For a trade, it is a price, usually a chart level, that says the idea failed. For an investment, it is a business result, like two quarters of falling sales when you bought for growth. If you cannot name it, you do not know when to sell. Where to put your stop loss and take profit shows how to find that level on a chart.

The second half of the question matters just as much. A stop you will not honour is not doing anything for you.

3. If I am wrong, how much of my whole account do I lose?

Measure the loss against your whole account, because that is the money you actually live on. A 10% fall on a small position is a scratch. The same fall on a position worth half your account is a disaster. Most traders keep the loss on any single trade to a small, fixed slice of the account, and the position sizing post explains one common way to do it.

4. What is scheduled before I plan to sell?

Check the calendar for earnings, an ex-dividend date, or a big central bank decision. An earnings report can gap a stock 10% or more overnight, straight through any stop you placed. If you are swing trading, the simple rule is to be out before the report unless the trade is about the report. Holding stocks through earnings covers the trade-offs.

5. Can I get out easily?

Look at the average daily volume and the bid-ask spread. A common floor for trading is at least 1 million shares or USD 50 million traded a day, with a spread of 0.1% or less. A thin stock is easy to buy and hard to sell, and it is hardest to sell exactly when you most want to.

Want a full routine built around questions like these? Our free 15-Minute Swing Trader’s Checklist has the daily routine and the questions to ask before every single trade. Get the free checklist →

6. How much of my money already sits in this stock or its sector?

Concentration creeps up on you. You own two banks, then a bank ETF, then a REIT that is mostly bank debt. Each buy looked small, and together they are one big bet on one thing. Count it before you add. How much of your portfolio to put in one stock gives some sensible limits.

7. Why today?

This is the feelings question, and it catches the most. Maybe the stock just jumped and you feel left behind, or a friend mentioned it over dinner, or it dropped and now it feels cheap. As one Reddit post put it, “just because a stock dips doesn’t mean it’s on sale.”

A good answer sounds like a rule: the stock reached the level your plan named. A bad answer sounds like a story. If everyone around you is buying, read why the herd is usually late before you join it.

Which questions matter most for traders and for investors?

All seven apply to both. But the weight shifts depending on how long you plan to hold.

QuestionWeight for a swing traderWeight for a long-term investor
1. Trade or investmentHighHigh
2. What proves me wrongA chart level, decided nowA business result, decided now
3. What a loss costsHigh, every tradeHigh, at the position level
4. What is scheduledHigh, earnings especiallyLow, unless the event changes the thesis
5. Getting outHighMedium
6. ConcentrationMediumHigh
7. Why todayHighHigh

If you are still deciding between reading the chart and reading the accounts, technical analysis vs fundamental analysis lays out what each one is good at.

Won’t a checklist make me miss good trades?

Sometimes it will, and that is fine. Gawande made a similar point about pilots. They are trained to accept that “their memory and judgment are unreliable”, so they run the list even when they feel sure. Missing a good trade costs you nothing. Taking a bad one costs you money, and often confidence too.

Do note this is a DO-CONFIRM list, to use Gawande’s term. You do your research and planning the way you always do. Then, at the door, you stop and confirm. It should never take more than a minute or two.

How do you make the checklist stick?

Put it where you click buy. A sticky note on your screen works. So does a note pinned in your broker app. The point is to see it at the pause point, every time, without having to remember it.

The most useful habit is to write the answers down, even in one line each. A written “why today” is hard to fake. Then, when you review your trades at the end of the month, you can see which question you skipped on the ones that went wrong.

So which of the seven did you skip on your last buy, and would that trade have survived the question? For more on building your first habits, see the beginner’s guide to trading.

FAQ

What should you check before buying a stock?

Run seven quick questions: trade or investment, what proves you wrong, how much you lose if wrong, what is scheduled, whether you can get out easily, how concentrated you are, and why today. Research comes before this, and the checklist confirms it at the moment you buy.

How long should a stock checklist be?

Between five and nine items, and it should take about a minute. Atul Gawande found that longer lists tend to get skipped.

Should you buy a stock before earnings?

For a swing trade, usually not. An earnings report can gap the price straight through your stop. For a long-term investment, earnings matter less unless they change your reason for owning it.

Is a stock that dropped a good buy?

A drop alone does not make it one. A falling price says nothing by itself about value, and question 7 is there to catch exactly this.

Go deeper

This list is the pause before you buy. The free 15-Minute Swing Trader’s Checklist adds the daily routine, the pre-trade questions to ask before every trade, and the five rules that protect your account.

About the author. Spencer Li is The 15-Minute Trader and the founder of Synapse Trading. He is a Certified Financial Technician (CFTe) with 15+ years of trading, run from 70+ countries. He holds a B.Acc and B.BM from SMU. Every trade he takes is public, dated, losses left in. He teaches low-risk swing trading in 15 minutes a day, one system for any market.

Educational content only, not personalised financial advice. Trading carries risk, including loss of capital. Past performance is not indicative of future results. Synapse Trading is not licensed or regulated by MAS.

by
Spencer Li

Call and Put Options Explained: How Each One Makes or Loses Money

Calls and puts explained - options

Last updated: 10 September 2026 · By Spencer Li, CFTe

A call option is the right to buy 100 shares of a stock at a fixed price before a fixed date. A put option is the right to sell 100 shares at a fixed price before a fixed date. You pay a premium for that right, and that premium is the most a buyer can ever lose.

So how does each one make money? A call pays when the stock rises far enough above the fixed price, soon enough, to be worth more than the premium you paid. A put pays the same way when the stock falls. If the move is too small, or it arrives after the date, the option expires worth less than you paid, or nothing at all. The person who sold you the option sits on the other side of every one of those outcomes, keeping the premium when little happens and paying out when the big move comes.

Which means an option buyer has to be right about 3 things at the same time. Let’s call them the 3 Ds: Direction, Distance and Deadline. It is easy to think only about the first one, and the other two are where the money goes.

Be right on direction, distance and deadline. Summary card for the post: Call and Put Options Explained: How Each One Makes or Loses Money.

What is a call option, and how does it make money?

Let’s use one hypothetical example with round numbers, so the arithmetic stays visible.

A stock trades at USD 50, and you buy the 50 call that expires in a month for USD 2 a share, so with one contract covering 100 shares, the premium comes to USD 200. Simple enough. That 50 is the strike price, the price at which you have the right to buy.

Now fast forward to expiry. Here is what the call is worth at five different stock prices:

Stock price at expiryStock moveCall worth (per share)Your result on the premium
45−10%0−100%
500%0−100%
52+4%20%
55+10%5+150%
60+20%10+400%

Look at the third row. The stock went up 4%. You made nothing. That is because the call has to cover its own cost first, so the break-even is the strike plus the premium, 50 plus 2, which is 52.

And look at the second row. The stock did not fall at all, it simply sat still for a month while the clock ran, and that was enough to take the whole premium.

What is a put option, and how does it make money?

A put is the mirror image. Same stock at USD 50, and you buy the 50 put for USD 2 a share.

If the stock falls to 40 by expiry, your right to sell at 50 is worth 10 a share, which is 5 times what you paid, and that is the kind of payoff that gets people hooked. If it drifts down to 48, the put is worth 2. Back where you started. And at 50 or above, the put expires worthless.

People buy puts for 2 reasons. Some are betting on a fall. Others already own the shares and want insurance against one, which works much like the travel insurance you buy before a holiday. You pay a small known amount, you hope you never claim it, and most of the time you do not.

Why can you be right about the stock and still lose money?

Well, this is where the 3 Ds come in.

  • Direction. Up for a call, down for a put. This is the obvious part, and it is only a third of the job.
  • Distance. The stock has to travel past the break-even, the strike plus or minus the premium. A small move in the right direction can still be a loss.
  • Deadline. An option has an expiry date, and it loses a little value every day the stock does nothing. That daily cost is called time decay, and it speeds up in the last few weeks before expiry.

So you can be right on direction, wrong on distance or deadline, and still lose every cent of the premium. That is quite a different experience from owning the shares, where being early just means waiting.

Three price paths starting at the 50 strike: only the red one rises past the 52 break-even before the deadline; one moves too little and one arrives too late
A call pays only if the stock rises past break-even before the deadline.

A poster on r/Daytrading put numbers on this in September 2026, after he went back through 10 years and 2,044 of his own option trades and found that he had won 55% of them and still lost money overall. Ouch. Trades he held for more than an hour did most of the damage, and so did the cheapest contracts. His own summary: “I didn’t have an edge problem. I had an after-the-entry problem.” (It is self-reported and unchecked, so read it as one person’s record.)

What happens on the other side, when you sell an option?

Every option you buy, somebody sold. The seller collects the premium up front and, in exchange, takes on an obligation that only shows up when the stock moves against them. If a call seller is assigned, they have to sell the shares at the strike. If a put seller is assigned, they have to buy them at the strike.

The seller’s position looks a lot like running an insurance company, or the casino. Many small premiums come in, and once in a while a big claim goes out. That is a perfectly good business when the premiums are priced right, and a very painful one when a single claim wipes out a year of them. Who wins? The house, usually. But only because it sets the odds and never lets one table stake the whole building, which is the idea behind running your trading like a casino rather than a gambler.

Here are the 4 basic positions side by side:

PositionYou make money whenMost you can makeMost you can lose
Buy a callthe stock rises past strike plus premium before expiryno fixed ceilingthe premium
Buy a putthe stock falls past strike minus premium before expirythe strike minus the premium, if the stock goes to zerothe premium
Sell a callthe stock stays below the strikethe premiumno fixed ceiling if you do not own the shares
Sell a putthe stock stays above the strikethe premiumthe strike minus the premium, if the stock goes to zero

Do note the last column. A buyer’s worst case is known the moment the trade is placed. A seller’s worst case can be many times the premium collected. That one fact shapes almost everything else about options.

If you want a daily routine for the trades we do teach, the free 15-Minute Swing Trader’s Checklist is at the end of this post.

What does this mean before your first options trade?

Three practical things follow from the 3 Ds.

First, the premium is the whole risk on a bought option, because there is no price level at which a stop gets you out cheaply. So the premium has to fit inside whatever you already risk per trade, the same way any position does. The 2% money management rule for position sizing works on options too, with the premium as the amount at risk.

Second, the deadline costs money every day, so the further out the expiry, the more you pay for the extra time, and the slower the decay. Neither choice is free. You are only choosing which way to pay.

Third, if you are in Singapore, the broker has to check you first. Options are derivatives. MAS rules require a Customer Account Review before the account is opened, which the notice defines as “a review of a Customer’s knowledge and experience in derivatives”. The broker looks at your education, your investment experience and your work experience. If you trade US-listed options from here, that also means trading in US dollars, in a market that opens at 9.30 pm or 10.30 pm Singapore time.

Personally, I think the 3 Ds are the whole lesson for a beginner. The poster with 2,044 trades won more of them than he lost. By his own count, what cost him was holding too long and buying the cheapest contracts. A contract is cheap because the stock has far to travel or little time left, which is distance and deadline, the 2 Ds that are easy to miss on the way in. For the full map, including the Greeks and the 4 structures most people start with, read the ultimate guide to options trading. And if you are now wondering where a beginner should actually start, that is the next post: the best options strategy for beginners, and how to test the one you found.

FAQ

Do I need to own the shares to buy a call or a put?
No. You can buy a call or a put on a stock you do not own. Owning the shares only matters when you sell a call and want it covered.

What is the most I can lose buying a call option?
The premium you paid, all of it. On one contract that is the price per share times 100.

What is the most I can lose selling a put option?
The strike price minus the premium, times 100 shares, if the stock goes to zero. Selling a call without owning the shares has no fixed ceiling on the loss at all.

Do I have to hold an option until it expires?
No. You can sell the option back before expiry. The Options Industry Council says that historically more than 72% of option contracts are closed out before expiration. On a strike that trades thinly, though, the price you get back can be well below the price on the screen.

Can I trade options from Singapore?
Yes, through a broker that offers them, after the broker reviews your knowledge and experience in derivatives. US-listed options trade during US market hours, which run from late evening to early morning in Singapore.

Does Synapse Trading teach options?
No, not at the moment. We teach end-of-day swing trading in shares, forex and ETFs, and these options posts exist because the questions keep coming and the honest answers are short.

Go deeper

The 3 Ds apply to every trade, options or not, and the swing-trading side is the part we do teach. The free 15-Minute Swing Trader’s Checklist has the daily routine, the questions to ask before every trade, and the five rules that keep you in the game.

About the author. Spencer Li is The 15-Minute Trader and the founder of Synapse Trading. He is a Certified Financial Technician (CFTe) with 15+ years of trading, run from 70+ countries. He holds a B.Acc and B.BM from SMU. Every trade he takes is public, dated, losses left in. He teaches low-risk swing trading in 15 minutes a day, one system for any market.

Educational content only, not personalised financial advice. Trading carries risk, including loss of capital, and isn’t suitable for everyone. Past performance is not indicative of future results. Synapse Trading is not licensed or regulated by MAS.

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Spencer Li

The Wheel Strategy and Cash-Secured Puts: How It Works and Where It Breaks

The wheel strategy - options

Last updated: 15 September 2026 · By Spencer Li, CFTe

The wheel strategy is a loop of 2 option sales on the same stock. First you sell a cash-secured put, which means you set aside enough cash to buy 100 shares at the strike price and collect a premium for promising to do so. If the stock stays above the strike, you keep the premium and sell another put. If the stock falls below it and you are assigned, you buy the 100 shares at the strike. Then you sell covered calls against those shares until they are called away, and the loop starts again.

In a calm or rising market, the wheel collects a steady trickle of small premiums. In a falling market, it holds the full downside of the shares, bought at the old price, and the calls you can sell above your cost pay very little. Call that second state a stuck wheel.

So the honest summary has 3 stages, Put, Own, Call, and one way it breaks, the stuck wheel. Here is each in turn, with the arithmetic shown.

The wheel strategy as a loop of three stages, Put, Own and Call; the Call stage is marked stuck, and the way back to Put is dashed
The wheel loops from put to shares to call, and stalls when the stock keeps falling.

Paid a little to promise a lot. Summary card for the post: The Wheel Strategy and Cash-Secured Puts: How It Works and Where It Breaks.

How does a cash-secured put work?

A cash-secured put is the first stage, the Put. Let’s use one hypothetical example with round numbers, and the premiums are made up for illustration only.

A stock trades at USD 50. You sell the 45 put expiring in a month and collect USD 0.60 a share. Since one contract covers 100 shares, the broker holds 45 times 100 in cash, USD 4,500, so that you can pay for the shares if you have to. The premium is 0.60 on 45, which is about 1.3% of the cash set aside.

Here is how that one month can end:

Stock price at expiryWhat happensYour result on the cash set aside
52the put expires, you keep the premium+1.3%
46the put expires, you keep the premium+1.3%
44.40you are assigned at 45, and the premium brings your cost to 44.40about 0%
40you are assigned at 45, and the shares are worth 40about −9.8%
30you are assigned at 45, and the shares are worth 30about −32%

Look at the shape of that table. The top 2 rows can only ever pay 1.3%. The bottom 2 rows have no such limit, and the last one is a stock falling 40% in a month. A single stock can fall sharply on one bad set of results.

That is what the ultimate guide to options trading means when it says you are paid a little to promise to buy a lot.

What happens when you get assigned?

Assignment means the buyer of your put used their right to sell you the shares at the strike. So now you own 100 shares at 45, which is the second stage, the Own.

Do note that it can happen before expiry. US stock options can be exercised early, so a put that is deep in the money can be assigned any day, and the 100 shares appear in the account whether you were ready or not. On the screen it looks a lot calmer than it feels. You promised to buy a stock at 45, the stock is now at 40, and the cash you set aside has become shares that are down on day 1.

Most wheel tutorials say the same thing at this point: only sell puts on stocks you would be happy to own. It sounds sensible. But a post on r/options in August 2026 was titled, in quotes, “‘Stocks I wouldn’t mind getting assigned’ is a myth”, and the reason is easy to feel. A stock that has just fallen 20% is no longer the stock you wanted. It is the same ticker with worse news, and fear has a way of rewriting how much you wanted it.

How do the covered calls work in the third stage?

The third stage is the Call. You own the shares, so you sell a call against them, and the call is “covered” because you can deliver the shares if it is exercised.

If the stock stays near your cost, this part is easy. You sell a call a little above 44.40, collect the premium, and if the stock rises through the strike, your shares are called away at a small gain and you go back to selling puts.

Now take the 40 row from the table. Your cost is 44.40 and the stock is at 40. That leaves you with 2 choices, and neither is pleasant.

  • Sell a call above your cost, say the 45 call. It is far above the current price, so it pays very little, perhaps 0.20 in this made-up example, about 0.5% a month. You are waiting for an 11% recovery while collecting a fraction of what you collected before.
  • Sell a call near the current price, say the 40 call, for a bigger premium. If the stock rises and the shares are called away at 40, you lock in the loss: 40 plus the call premium is still below 44.40.

This is the stuck wheel. Nothing has gone “wrong” in the mechanics. The strategy did exactly what it promised, which was to buy the stock if it fell, and now the income from it has mostly dried up while the loss on the shares sits there.

If you would rather learn the trades we do teach, the free 15-Minute Swing Trader’s Checklist is at the end of this post.

Why do so many people like the wheel anyway?

Because most months look like the top 2 rows of the table. You sell a put, it expires, you keep the premium, and you do it again. The win rate is high, and every win brings a little relief.

A retail backtest posted on r/options in September 2026 shows how that looks over many trades. Across 3 big US index ETFs from 2020 to 2025, selling cash-secured puts and holding each for 10 trading days won 74.1% of the time, and the worst single trade lost about 20% of the ETF’s value. That is one person’s self-reported test, unchecked, but the shape matches the table above. Frequent small gains, and a rare loss that is many times bigger than any one of them.

Whether that adds up to a steady income over a full cycle, including a bear market, is a separate question. It gets its own post: can selling options pay a steady monthly income?

What does the wheel actually need from you?

Here are the 3 stages side by side, with what each one asks of you.

StageWhat you doWhat you collectWhat you carry
Putsell a cash-secured put, holding 100 times the strike in casha small premiumthe obligation to buy 100 shares at the strike, however far the stock falls
Owntake delivery of 100 shares if assignednothingthe full downside of the shares
Callsell covered calls against the sharesa premium that shrinks as the stock falls below your costthe shares, plus a cap on the upside

Three things follow from that table.

  1. Capital per contract is large. On a USD 50 stock with a 45 strike, one contract ties up USD 4,500. A small account can only wheel 1 or 2 stocks, which means the whole account rides on 1 or 2 companies.
  2. The position size is the 100 shares. It is tempting to size the trade by the premium collected, because that is the number you see. The risk is the 100 shares, so they need to fit inside your position sizing the way any stock purchase does. The 2% money management rule for position sizing is a good place to start.
  3. You need a plan for the stuck wheel before it happens. Either a price at which you sell the shares and take the loss, or a clear acceptance that you will hold them as an investment for years. Deciding that while the stock is falling is much harder.

And if the mechanics of puts and calls are still new, how call and put options make or lose money is the place to start, with a worked example of each.

Personally, I think the wheel is best understood as what it is, which is a slow, patient way of buying a stock at a lower price, with a small fee paid to you for the wait. Framed that way, the stuck wheel stops being a surprise. It is the strategy doing its job on a stock that kept falling after you bought it.

FAQ

What is the wheel strategy in options?
The wheel is a loop of selling cash-secured puts until you are assigned 100 shares, then selling covered calls on those shares until they are called away, then starting again. It collects premiums in calm markets and carries the full downside of the shares in a falling one.

What is a cash-secured put?
A cash-secured put is a sold put where you hold enough cash to buy 100 shares at the strike price. You collect a premium, and if the stock falls below the strike you may have to buy the shares at that price.

What happens if my cash-secured put is assigned?
You buy 100 shares per contract at the strike price, using the cash you set aside. US stock options can be assigned before expiry, so it can happen on any day the put is in the money.

What is a stuck wheel?
A stuck wheel is when you own the shares at a cost well above the current price, so any call above your cost pays very little. Your choice is between waiting for a recovery and locking in a loss.

How much money do I need for the wheel strategy?
For each contract, 100 times the strike price in cash, so a 45 strike needs USD 4,500. That size usually limits a small account to 1 or 2 stocks.

Does Synapse Trading teach the wheel strategy?
No, we do not teach options at the moment. We teach end-of-day swing trading in shares, forex and ETFs, and this post exists because the wheel is one of the most asked-about strategies we see.

Go deeper

The wheel is, underneath, a way of buying a stock and managing it once you own it, which is the swing trader’s job too. The free 15-Minute Swing Trader’s Checklist has the daily routine, the questions to ask before every trade, and the five rules that keep you in the game.

About the author. Spencer Li is The 15-Minute Trader and the founder of Synapse Trading. He is a Certified Financial Technician (CFTe) with 15+ years of trading, run from 70+ countries. He holds a B.Acc and B.BM from SMU. Every trade he takes is public, dated, losses left in. He teaches low-risk swing trading in 15 minutes a day, one system for any market.

Educational content only, not personalised financial advice. Trading carries risk, including loss of capital, and isn’t suitable for everyone. Past performance is not indicative of future results. Synapse Trading is not licensed or regulated by MAS.

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