The Ultimate Guide to Stocks and CFDs Trading

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

A share and a CFD on that same share move together on the screen, and they are not the same thing at all.

When you buy a share, you own a slice of a company. When you buy a CFD, you own a contract with your broker that pays you the price difference, and nothing else. That one line explains almost everything that follows. It is why a CFD lets you short a stock in one click, why it charges you to hold overnight, and why a bad week can cost you more than you put in. It is also why the regulator makes your broker test you before it switches CFDs on. This guide walks through shares, ETFs and CFDs side by side, shows the leverage arithmetic in full, and tells you honestly which one fits a working adult who trades in 15 minutes a day.

What are you actually buying?

Three products, three different things in your account.

A share. A piece of the company. You get the dividend, the vote and the right to hold it for 30 years if you like. In Singapore the share sits in your CDP account. In the US it sits with your broker’s custodian. Nobody charges you rent for keeping it.

An ETF. A share in a fund that holds a basket of other things, a whole index, a sector, a commodity. One ticket buys you the basket. It trades like a share and is owned like a share.

A CFD. A contract for difference. You and the broker agree to settle the difference between the price when you open and the price when you close. You never own the share. The broker is usually the other side of your trade, you pay a financing charge every night you hold, and the position is funded on margin, so you put up a fraction and borrow the rest.

So you might be thinking, if they all track the same price, why does it matter? Well, it matters because of what happens when the price goes against you.

The leverage arithmetic, shown in full

The ads never show this arithmetic, so let me show it in full. Suppose you have SGD 1,000 to risk.

With shares, SGD 1,000 buys SGD 1,000 of stock. The stock falls 5%. You have lost SGD 50, and you still own the shares.

With a CFD on the same stock, the legal minimum margin for a retail trader in Singapore is 10% on a large index stock. So that same SGD 1,000 can control a SGD 10,000 position. The stock falls 5%, and the position has lost SGD 500, half your stake. Let it fall 10%, and the position has lost SGD 1,000.

Your entire stake, on a 10% move.

Now, a 10% move is a bad month for many stocks, and a normal week for some. Nothing went wrong with the trade. The product did exactly what it says on the tin. Leverage did not create a new risk, it multiplied an ordinary one by 10, and the 10 is the whole story. Do note that it multiplies gains by the same 10, which is why people keep coming back to it, and why the losing streak that every strategy eventually has hits a leveraged account like a bus. On an index or forex CFD the floor is 5%, so the same SGD 1,000 controls SGD 20,000, and a 5% move takes the lot.

What the regulator makes your broker do first

Singapore’s rules on CFDs are stricter than most of the world’s, and it is worth knowing why.

MAS treats CFDs and leveraged forex as Specified Investment Products, the class of products that can “contain derivatives, which can expose you to more factors that may affect your investment”. Since January 2012 a broker must run a Customer Knowledge Assessment before it lets a retail customer trade them. You pass on a relevant qualification, 3 years of relevant work experience in the last 10, or 6 trades in that product type in the last 3 years. Fail it, and the broker has to give you advice before you trade, rather than refuse you.

On leverage itself, MAS decided to “impose a minimum margin rate of 5% for CFDs on FX and LFX contracts transacted with retail investors”, which caps forex CFD leverage at 20 to 1. Its own reasoning is the honest part: “While capping the leverage does not necessarily prevent losses, it mitigates the risk of retail investors taking on excessive positions and provides a buffer for unexpected losses.” The regulations set the other floors in a table: “10% for index stocks”, “20% for non-index stocks” and “5%” for index CFDs. That caps you at 10 to 1 on a large stock, 5 to 1 on a smaller one, and 20 to 1 on an index or a currency pair. These are floors, so your broker may ask for more, and its margin page is worth reading before you fund the account. And when the collateral in your account falls below the minimum, the broker must make the margin call and you must meet it “within two business days”.

Personally, I read that as the regulator telling you the same thing I would: the product is legal, the product is tested, and the product still ends most beginners’ accounts.

Shares, ETFs and CFDs, side by side

The 3-question product test

Whenever someone shows you a new way to trade a stock, ask 3 questions, and the product tells you what it is.

1. Do I own it? If not, you are holding a promise, and a promise is only as good as the firm making it.
2. What does it cost me to wait? Shares cost nothing to hold. Anything that charges you nightly is pushing you to trade more often than your strategy wants.
3. Who is on the other side? On an exchange it is another investor. On a CFD it is usually the broker’s own book, which is not a scandal, but it is a fact you should trade knowing.

A share passes all 3 cleanly. An ETF passes with a small annual fee. A CFD fails the first, charges you on the second, and makes you think hard about the third. That is not a reason to never touch one. It is a reason to know exactly what you are holding.

So which one should a working adult trade?

Start from your life, not from the product. If you can give the markets 15 minutes a day after the close, you are an end-of-day swing trader whether you like the label or not, and that rhythm needs positions you can leave alone overnight without a financing meter running. Shares and ETFs do that. In my own account I buy shares and ETFs outright through a plain broker, and I skip the CFD version of the same exposure because the counterparty risk and the nightly cost buy me nothing I cannot get directly.

If you want the routine behind all of this, the free 15-minute checklist is at the end of this guide.

CFDs earn their place in 2 situations. You want to short a stock cleanly, or you want a small position in a market your plain broker does not reach. In both, keep the leverage at or near 1 to 1, which most platforms let you do. The broker offering 20 to 1 is not obliging you to use it.

And whatever you trade, the 2 guides that decide whether you survive long enough to get good are risk and money management and trading psychology. The product picks your exposure. Those 2 keep you alive between the good trades.

FAQ

Is a CFD the same as buying the stock?
No. A CFD is a contract with your broker that pays the price difference, so you never own the share, you pay to hold it overnight, and your loss can exceed the margin you put up. The price moves the same way, and that is the only thing the 2 share.

Can I lose more than I deposit on a CFD?
Yes. A margined position can fall past your collateral, and MAS requires your broker to call for more margin, which you must meet within 2 business days. On shares bought outright the most you can lose is what you paid.

What is the Customer Knowledge Assessment?
It is the test a Singapore broker must run before it lets a retail customer trade products like CFDs and leveraged forex. You pass on a relevant qualification, 3 years of relevant work experience, or 6 past trades in that product type. If you fail, the broker has to advise you before you trade.

Are Singapore shares or US shares better for a beginner?
Neither is better, they are different. SGX shares settle into your own CDP account and keep you in your home currency. US shares give you far more liquid names to choose from and need a currency conversion first. Most end-of-day swing traders end up trading US names for the liquidity and holding SGX names for income.

Should a beginner start with CFDs because the deposit is small?
Most traders who last did not. The small deposit is the leverage talking, and leverage is the thing that ends beginner accounts. The usual path runs through shares or an ETF first, learning to size a position so one bad trade cannot hurt, and only then asking whether a CFD adds anything.

Go deeper

This guide is the hub for every stocks and CFDs post on the site:

• The products: stock market basics · understanding CFDs · stocks vs forex · what leverage is
• Picking stocks: finding undervalued stocks · reading financial statements · financial ratio shortcuts
• Lessons: 3 lessons from Jesse Livermore

This guide explains what each product is and who it suits. The routine I run on shares, forex and ETFs is in the free 15-Minute Swing Trader’s Checklist: the daily 15 minutes, the questions to ask before every trade, and the five rules that keep you in the game. Enter your email and we’ll send it over:

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About the author. Spencer Li is the founder of Synapse Trading and a Certified Financial Technician (CFTe) with 15 years of trading across stocks, forex, crypto, commodities, and bonds. His trade log is public: every trade since April 2024, 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.