Stock Market Psychology: Behavioral finance, new research, and beyond

Thursday, September 11, 2008

The Wicked Garden Effect (TM)


I don't know if you've noticed, but it's been a bumpy ride for "The Market" so far this year.

And by bumpy, I mean horribly nauseating.

Many of us have individual holdings that have dropped 20%.

And many of us have holdings that have dropped a lot more than that.

Now, if you managed to hit the eject button early on and have resisted the urge to grasp at the knives falling all around us, I offer you my sincere congratulations. You've held fast to Warren Buffet's first rule of investing, "Don't lose money."

But if you're Un-Buffet-Like (and most of us are), you may be holding some positions that are way down. And if you need to clear up some cash, you may be put in the unenviable position of having to sell stocks when you'd prefer not to.

The question becomes; which stocks do you sell?

Here's a question: Imagine you've got two stocks in your portfolio. Stock A is up 25% from your buying price. Stock B is down (ugh) 25% from what you paid for it. Given just this information, which one would you be most inclined to sell?

What does your gut tell you to do in this situation?

Go ahead and think about it for a moment.

I'll wait.
...
...
...

Which one did you pick?

If I were a gambling man (and I am), I'm going to say you picked stock B. Most people do.

Now, Stock B may indeed be the best choice to sell. We have no way of knowing in this scenario.

But reflect on the reasons, the inner justifications for your decision above.

You may find yourself thinking things like.."It'll come back" or "Now is a bad time to sell" or "I can lock up a gain if I sell stock A" or "Why didn't Dirk Benedict get more work after he did The A Team... he was cool as hell on that show?")

Sorry. Got a little off track on that last one.

The desire to sell the winners in our portfolio, but hold the losers is a phenomenon that we at MarketPsych call "The Wicked Garden Effect."

We call it that because it's the investing equivalent of clipping all the flowers in a garden, and watering the weeds. And in my book, this is the worst mistake investors make. Over time you are left with a garden that is overrun by weeds, and the flowers have long been gone. The effect is devastating.

You may recognize this tendency in yourself or even recognize a couple of accounts that have become like Wicked Gardens.

Behavioral finance would cite the concept of Loss Aversion as the culprit. And they'd be right. But I view it as allowing our emotional needs (e.g., to feel good about ourselves, to not be a "loser") to override our financial needs (e.g., to invest in the best companies, to make money.)

Unfortunately, the price for feeling okay about ourselves often comes at the expense of our returns.

How do you defend against the Wicked Garden Effect?

1) Be aware of this powerful tendency.

2) Use solid objective criteria on which stocks to sell. (This is tough. It requires research and thinking... do it anyway.)

3) Identify the emotional need behind the sell decision and get some leverage on yourself. The fool isn't the one who made a mistake. The fool is the one who can't admit it.

For those who are interested, MarketPsych does (fun and interesting) investing workshops, trainings and presentations that explore this and other concepts.

Happy Investing.

Frank

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Friday, March 14, 2008

Nice Call, Master Yoda


Market: I'm not afraid!


Regarding your previous post, you may not have to be worried about the absence of fear for long.

The MarketPsych Fear Index has seen an uptick recently.

One reason I believe it has meandered of late is that a critical and catalyitc component was missing: The appearance of a nightmare scenario that the individual can; 1) experience viscerally, and 2) consider credible.

The Bear Stearns news today presented just such a scenario, and it sent a shockwave of fear through the markets.

We simply do not live in a world where "Modest CPI Numbers" can compete with "Wall Street Institution Imploding Overnight" in a market-moving contest.

If it sets off a "fear cascade" (think dominoes), we may just see Market Panic make it's first reappearance in years.

Getting my cash ready now...

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Thursday, February 28, 2008

MarketPsy Capital


Our new spin-off asset management firm, MarketPsy Capital, was mentioned in a new Popular Science Magazine article. The fund will be using our ground-breaking linguistic analysis technology to identify and exploit psychological mis-pricings in stocks, currencies, and commodities. For more information, please contact Richard Peterson at richard@marketpsy.com.

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