Much has been made of “collective intelligence”, “the wisdom of crowds” and a number of other terms used to describe how a crowd of people acting independently in their own self interest make better decisions than individuals. There is definitely mileage to it, the best example in existence is our economy: a market economy shows the characteristics of the phenomena I just described, lots of independent agents acting in their own self interest, resulting in accurate pricing and production of services and goods to meet human needs. It’s superiority over the socialist and communist centrally planned economy cannot be emphasized strongly enough – the Soviet Union and its satellite states collapsed almost 20 years ago, while countries with functioning markets continue to thrive and prosper.
In the last few years, “Web 2.0″ startups have been quick to try to tap into the “wisdom of crowds” in a number of areas, from ranking of news stories to rating of different vendors. But there is one area where it is bound to fail: so called “Social stock picking”, as popularized by sites such as SocialPicks, Stockpickr and Stocktickr.
Why? The reason is simple, the “wisdom of crowds” is already counted into what they are trying to beat, it’s called “the stock market”. What these sites have is a miniscule subset of all the people acting in the stock market, their “crowd” is smaller and as a result bound to be worse at evaluating the correct price of any stock. It is hard to beat the “wisdom of crowds” by having a dramatically smaller crowd trying to employ the same mechanics.
Some of these sites may try to counterweigh this by ranking the people using the sites by their performance, but this won’t actually add any value until a site has at least 10-15 years worth of performance data. The reason for this is equally simple, past performance is no indicator of future performance: anyone who picked lots of Internet-stocks between 1998-2000 would have looked like a genius based on performance. But in 2002 they would have been pretty much wiped out. Performance ratings are useless unless they are backed up by a consistent and intelligent strategy that will make the investor money in both good and bad markets (fact: almost no investor or fund manager ever beats the index over a longer period of time).
Finally, trying to pick “winning stocks” is a fools game (for a game it is) unless the person can materially influence the strategy of his picks in a positive direction. Anyone who has done a bit of reasonably successful investment will be aware that picking winning stocks is notoriously hard, the key to performance is not about picking individual winners, but allocating capital well into winning sectors and companies that on average will do better than the rest.
Furthermore, making money in a bull market is probably the easiest thing in the world. The great investors are the ones who can limit their losses or even make money in a bear market.
Given all these factors, “Social stock picking” is bound to be a loosing proposition.
(Given the financial nature of this post, I would like to emphasize my disclaimer that is applicable to all posts on this blog).

