"Nobody goes there anymore. It's too crowded." ~ Yogi Berra
Is last week's Yankees win a bullish indicator for stocks? Stock prices are at a 13-month high, does that mean that the market will continue to go up in the short-term? Or are stocks due for a correction? Do the answers to these questions really matter to your investment strategy?
Perhaps the greatest strength and simultaneous weakness of the human brain is its hard-wired tendency for pattern recognition. Certainly this heuristic wiring aided in pre-historic man's search for food and avoidance of danger but does it translate to prudent financial decisions? Not necessarily.
In fact, pattern recognition might be the root cause of most economic and market bubbles (and bursts), including those leading to the current financial crisis.
Those of you readers who are traders might counter my point by saying that momentum trading is real and can be quite foolish to ignore. Nothing attracts a crowd like a crowd! While this is true -- the crowd is "right" more often than it is "wrong" -- it also opens the door to peril -- to the confusion between causation and correlation and to the illusion of control.
"Death is caused by swallowing small amounts of saliva over a long period of time." ~ George Carlin
Humor, which I believe to be a form of philosophy, sure does have a way of illuminating the folly of human thought and behavior, doesn't it?
At root of searching for patterns and confusing causation with correlation is the philosophic term, fallacy, which is simply an instance of poor reasoning.
Perhaps the most common fallacy, with regard to investing, is the gambler's fallacy. For example, if a coin is tossed three times and it lands on heads each time, a large majority of people will detect a pattern and reason that the fourth toss will also be heads. Perhaps a smaller group might reason that it will land on tails, citing that the odds are against another toss landing on heads. Reasoning for both of these bets is fallacious because the chance of a coin landing on heads or tails is always 50%, regardless of the outcome (or number of) previous tosses.
With regard to investing, do Summer months cause stock prices to fall or is it just a period of time during most calendar years that is coincidental with weak stock market conditions? For example, the "sell in May and go away" phrase is based upon historical stock price movement (patterns) and suggests an investor avoid stocks from May through October. This year, however, the market, as measured by the S&P 500 jumped more than 18 percent from May 1 to November 1.
Of course, daily movement of the stock market is no toss of the coin and there are certainly times where technical analysis is more prudent than fundamental analysis. Furthermore, there is another counter-argument to be made, with investing and trading, that there is no real reason to distinguish between causation and correlation.
Essentially, the investor is looking for probability of an outcome. Regardless of how irrational the behavior may appear, all data must be considered because crowds often act irrationally. If the crowd anticipates higher stock prices because the Yankees win the world series, then this event may feed more of an illusion that conditions are favorable to buy stocks, thus becoming a self-fulfilling prophecy of sorts.
"Too keen an eye for pattern will find it anywhere." ~ T.L. Fine
In summary, and as with everything, there is a balance to be found but this balance is only accomplished through self-knowledge and self-awareness. To prevent a fallacious inference, one must be aware of the brain's tendency to find patterns; to take action on the pattern-based decision; and then to be given the illusion of control if the action is affirmed or "proves to be correct."
Put simply, do not be fooled by patterns! In fact, don't even look for patterns because you'll find one every time and everywhere you look!

Rationality & Prediction: One Year Later
Extending upon the recent discussion here on rationality, let's revisit one year ago today, October 6, 2008. The stock market was in free fall, declining nearly 10 percent in just five days, and the herd reaction was panic. As I think back to my own emotional state, I believe mine was also panic... but not for the same reason as the herd!
My panic was that others were panicking! My attempt to remain rational and orderly amidst irrationality and chaos may just have been, well, irrational! This hindsight observation begs the question, "When is it best to follow the herd and when is it not?" This may be the most common question on the minds of almost every investor, trader or asset manager when making investment decisions or giving recommendations, especially during extreme volatility.
If you are interested, feel free to read my blog post from exactly one year ago, Reasons Not to Sell Stocks Now. If you don't care to read it, here's the synopsis: As the herd was running for the exits, I was hyper-intentionally resolved to maintain my cool-headed contrarian stance. I can now admit that, in frustration, disgust and a bit of haste, I made the one and only "prediction" on this blog, which was that stock prices, as measured by the S&P 500 would close higher one year later and would even outpace the average money market fund!
What are the results of this prognostication? The S&P 500 closed one year ago, October 6, 2008, at 1056; yesterday (technically one-year later) it closed at 1040; and today, October 6, 2009, the S&P peaked intra-day at 1061 and finally settled at 1055, just a one point below its year-ago mark!
Of course, at the time, I didn't imagine how bold this prediction would appear, especially as the S&P 500 fell another 40 percent lower by March 9, 2009!
"There are no facts, only interpretations." ~ Friedrich Nietzsche
Those of you who have read this blog for long, know that I do not believe in making (or acting upon) predictions.
Without getting deep into a semantic analysis, one may argue that any action taken based upon an expected future result is a form of prediction. While this may be true, I should qualify my previous statement against prediction by saying that, in general, I believe it to be foolish to forecast an outcome that may be significantly influenced by the whims of human emotion.
On a lighter note, I can't help but think of some advice someone gave me with regard to emotions and personal relationships: "Would you rather be right or happy?"
This advice seems to work well with investing and financial markets, wouldn't you agree?
Posted at 09:24 PM in Investing & The Economy, Market Commentary | Permalink | Comments (0) | TrackBack (0)
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