A month or so ago, I gave a talk to a group of investors. We were standing around waiting for everyone to arrive and I was chatting with one of the attendees. Given the recent market conditions, the subject of our emotional response to events seems to come up a lot. Try as I might, I could not convince him of the role our emotions play in investing. Fortunately for me, several of the guests that night gave me perfect examples of some of the very behaviors I was trying to help him see.
In part one of this article, I gave the first three mistakes. They are: expert bias, stock picking and market timing, and staying in a bad investment until it gets back to break even. In part two, we will cover the other two: buying high and selling low and ignoring probabilities.
The Performance Paradox
During the Q&A session, one of the guests asked my opinion of gold. "I have been hearing a lot of commercials on the radio for gold," he said. "I have all these mutual funds that have lost money. I am planning to sell them and get into gold. What do you think?"
What I think is those commercials remind me of the Sports Illustrated jinx. As soon as a hot team appears on the cover of Sports Illustrated, their winning streak has probably about run its course. Remember when Time Magazine named Jeff Bezos, the CEO of Amazon, Man of the Year in 1999? Should have been a dead give away.
Nowhere else do we flock to something when it is expensive and shun it when it is cheap like we do with our investments. The fear of loss is deeply rooted in our survival instincts, as is the pleasure of gain. This creates what I call the Performance Paradox. The Performance Paradox says the more you chase performance and seek to avoid losses, the farther away you will get from your intended result.
Study after study validates this phenomenon. The most widely quoted is the Quantitative Analysis of Investor Behavior by Dalbar, Inc. The Dalbar study offers conclusive evidence that the average investor underperforms their investment by a wide margin precisely because they sell things when they go down and buy them when they go up.
"I don't believe in market timing," I told the gentleman. "But if I was going to do anything, I would be selling gold and buying stocks, not the other way around."
What to do about it: Base your investment decisions on how well an investment fits your objectives, your tolerance for risk, and your time horizon - not the performance of the investment. Never change investments unless one of these criteria change, which should, by definition, be very infrequently. Never react to news. By then it is too late.
Fooled by Probabilities
One of the guests was a big proponent of mutual funds. He spent all kinds of time searching for the "best funds". I think anything other than an index fund is a total scam.
"But I pick the good funds."
"The data says it is impossible to pick 'the good funds' because their returns are random."
Our brains are notoriously bad at dealing with randomness and probability. My friend Terry Burnham, in his wonderful book, Mean Markets and Lizard Brains uses two puzzles to illustrate the point. Here's the first puzzle:
Chinese families place a high value on sons, yet the Chinese government exerts extreme pressure to limit family size. Let's assume that that the chance of having a girl is exactly 50%, but every couple stops having babies once they have a son. So some families have one son, some have an older daughter and a son, some two older daughters and a son, and so on. In this scenario, what percentage of Chinese babies will be female?
Here's the second puzzle:
Imagine that you are a doctor and one of your patients asks to take an HIV test. You assure her that the test is unnecessary as only one in a thousand with her age and sexual history is infected. She insists, and sadly the test result indicates viral infection. If the HIV test is 95% accurate, what is the chance that your patient is actually sick?
Apparently, we all get this wrong, at least most of us do - unless you're an actuary like my husband Jim.
Don't believe me? When doctors and staff at the Harvard Medical School were asked the question about the HIV test, the most common answer they gave was a 95% chance that the patient was sick. The correct answer is a less than 2% chance that the patient is sick!
The same is true of the Chinese baby puzzle. As long as the chance of having a baby girl and each pregnancy is exactly 50%, the population will also have 50% girls. This is true regardless of any rule on when to stop having babies. But most people will answer differently.
So our brains are not built to do mathematical calculations. And yet, every investment really boils down to probabilities and mathematically determining the optimal trade-off between quantifiable factors such as risk and return.
Most people see a fund which has beaten the market averages over the last five years and infer from that that the fund manager has some uncanny stock picking skill. However, random chance would suggest that about 3% of all mutual funds, at any given time, should be beating the average over five years. The fact is less than 3% do, which would seem to imply the opposite - that fund managers have an uncanny lack of skill!
What to do about it: Do some reading. Awareness is the best defense against being fooled by randomness and probabilities. I would highly recommend three books: Mean Markets and Lizard Brains by my friend Terry Burnham, Fooled by Randomness by my friend Nassim Taleb, and the investment classic, A Random Walk Down Wall Street, by Dr. Burton Malkiel.
If reading isn't your bag but you really want to learn more about the mistakes investors make and how to avoid them, I encourage those of you in the Dallas Fort Worth area to attend our upcoming Investor Briefing on Tuesday evening, December 9th. It’s called, How to Solve Your Biggest Investment Challenges. I will discuss the recent trends making the job of the Family CFO so difficult and offer up my solutions. You can register on our website at snideradvisors.com.
For those of you who cannot attend the Investor Briefing because of time or distance, we now have an online version as well. You can register here.
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Snider Advisors makes no representation that the information and opinions expressed are accurate, complete or current. The opinions expressed should not be construed as financial, legal, tax or other advice and are provided for informational purposes only. This article is not a complete discussion of the benefits and risks of the Snider Investment Method®. For a complete discussion, read the Snider Investment Method® Owner's Manual, available by calling 888-6SNIDER. Please read and consider carefully before investing. All investments, including the Snider Investment Method® are subject to risk, including possible loss of principal. Income is objective and not a guarantee. Dollar cost averaging does not guarantee you will not experience capital losses.