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Trading Psychology | How to Think Like a Trader – Changing your Frame

If we look at the collective participation in the markets, we find many different kinds of people, different kinds of beliefs, and different kinds of theories. These differences create price movements and patterns. To understand and exploit these opportunities, we first need to understand ourselves. We will then be able to choose the kind of strategy best suited to our personality, and at the same time avoid behavioral biases by being aware of them.

 

How to Think Like a Trader – Changing your Frame

 

The theory of limited arbitrage shows that if irrational traders cause deviations from fundamental value, rational traders will often be powerless to do anything about it. In order to say more about the structure of these deviations, behavioural models often assume a specific form of irrationality. For guidance on this, economists turn to the extensive experimental evidence compiled by cognitive psychologists on the systematic biases that arise when people form beliefs, and on people’s preferences. Here are some of them:

Beliefs

A crucial component of any model of financial markets is a specification of how agents form expectations. We now summarize what psychologists have learned about how people appear to form beliefs in practice.

Overconfidence

Extensive evidence shows that people are overconfident in their judgments. This appears in two guises. First, the confidence intervals people assign to their estimates of quantities – the level of the Dow in a year, say – are far too narrow. Their 98% confidence intervals, for example, include the true quantity only about 60% of the time. Second, people are poorly calibrated when estimating probabilities: events they think are certain to occur actually occur only around 80% of the time, and events they deem impossible occur approximately 20% of the time.

Optimism and wishful thinking

Most people display unrealistically rosy views of their abilities and prospects. Typically, over 90% of those surveyed think they are above average in such domains as driving skill, ability to get along with people and sense of humor. They also display a systematic planning fallacy: they predict that tasks (such as writing survey papers) will be completed much sooner than they actually are.

Belief perseverance

There is much evidence that once people have formed an opinion, they cling to it too tightly and for too long. At least two effects appear to be at work. First, people are reluctant to search for evidence that contradicts their beliefs. Second, even if they find such evidence, they treat it with excessive skepticism. Some studies have found an even stronger effect, known as confirmation bias, whereby people misinterpret evidence that goes against their hypothesis as actually being in their favor. In the context of academic finance, belief perseverance predicts that if people start out believing in the Efficient Markets Hypothesis, they may continue to believe in it long after compelling evidence to the contrary has emerged.

Anchoring

When forming estimates, people often start with some initial, possibly arbitrary value, and then adjust away from it. Experimental evidence shows that the adjustment is often insufficient. Put differently, people “anchor” too much on the initial value. In one experiment, subjects were asked to estimate the percentage of United Nations’ countries that are African. More specifically, before giving a percentage, they were asked whether their guess was higher or lower than a randomly generated number between 0 and 100. Their subsequent estimates were significantly affected by the initial random number. Those who were asked to compare their estimate to 10, subsequently estimated 25%, while those who compared to 60, estimated 45%.

Availability biases

When judging the probability of an event – the likelihood of getting mugged in Chicago, say – people often search their memories for relevant information. While this is a perfectly sensible procedure, it can produce biased estimates because not all memories are equally retrievable or “available”. More recent events and more salient events – the mugging of a close friend, say – will weigh more heavily and distort the estimate.

Economists are sometimes wary of this body of experimental evidence because they believe (i) that people, through repetition, will learn their way out of biases; (ii) that experts in a field, such as traders in an investment bank, will make fewer errors; and (iii) that with more powerful incentives, the effects will disappear. While all these factors can attenuate biases to some extent, there is little evidence that they wipe them out altogether.

The effect of learning is often muted by errors of application: when the bias is explained, people often understand it, but then immediately proceed to violate it again in specific applications. Expertise, too, is often a hindrance rather than a help: experts, armed with their sophisticated models, have been found to exhibit more overconfidence than laymen, particularly when they receive only limited feedback about their predictions.

Herd Instinct

If you fall under this category, it means that you follow what the rest of the market is often doing. If there is a new IPO that is hot, or one of the stocks just crashed and word on the streets is that it is a hot buy, or there are rumours flying around of inside news that a certain stock will fly then you will do the same as the rest of the market. This is not always a bad thing because the simple answer to this is: But the market should always be right right? Since everyone is following the market. It is not always true but the market is random and BLINDLY following the market is wrong.

EUR/SGD – going down, down, down…


The Euro is going down, and is showing extremely weak technicals, which underlie the festering Greece debt fundamental problems. This is the first test of the 20-EMA after staying away for quite a long time, showing the bearish pressure. It also coincides with a breakout below the support of 1.92 and a pullback. On an unrelated note, it seems that my holiday here in Europe is getting cheaper and cheaper. I will be timing my exchange of SGD to EUR near the support levels.

Advanced Traders Mentoring Sessions at Singapore Management University

After a year of conducting weekly research and classes for the Advanced TA traders from the SMU Investment Club, I am proud to say that there are many promising traders in the club. Given the role of research director, it was my duty to organise trainings on a variety of trading subjects, as well as showcase its applications by doing real stock picks to facilitate discussion. I had a great time, and I would like to thank the Investment Club for all their support. All the best, and may the markets be with you!

Asia Investment Banking Conference 2009


This event was held in SMU, and saw professionals and student flying in from all over the world to attend talks and networking sessions with a variety of renowed industry speakers. 

After 3 days of talks and workshops, the event culminated in a memorable networking dinner and social drinking session in a professional setting. It was indeed a great opportunity to network with many industry professionals.

The 3 Essential Elements in your Roadmap to Success

Having studied many professional traders, I found that there are 3 crucial factors that have led to their success. All these market wizards have found success because they have understood and mastered the 3Ms of trading – Method, Money and Mindset.

Method (chart-reading): Process by which a trader enters into the market, using either technical or fundamental inputs to make their decision

Money (risk management): This includes capital allocation, risk parameters (drawdown limits), risk-to-reward calculations (entry price, profit target, stoploss)

Mindset (psychology): Market psychology the most important part of trading, and determines how well you can execute your trading plan in the markets in real time

The 3 Essential Elements in your Roadmap to Success - Wrong Allocation!

The 3 Essential Elements in your Roadmap to Success – Wrong Allocation!

To many new traders who know of these 3Ms, they tend to make the mistake of giving equal weightage to all 3 parts (refer to above), or even worse, almost 100% weightage to the “Method”. The most obvious danger is neglect to the other essential parts.

In reality, a professional trader should allocate the 3Ms as depicted below here:

“Don’t focus on making money; focus on protecting what you have.” – Paul Tudor Jones