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Comment by brianpgordon

That kind of stock picking is dangerous.

First, it's easy to look around your little bubble and see that people are lining up at your local Chipotle or that people use Google for solving tech support problems, and conclude that Chipotle and Google are taking off. They may be not be doing as well in other locales/sectors.

And second, how do you know that these signs of promise aren't already priced in? If you can see signs that Chipotle is doing well, so can everyone else. And they have deeper pockets and better information-gathering capabilities than you do. Nowadays satellite imaging and computer vision are used to count the number of cars in parking lots of retailers to predict earnings!

Lastly, there are innumerable complicating factors that the average retail investor has no idea how to account for. Maybe the stock price is low because their EBITDA is barely staying ahead of debt service payments. Did you read the SEC filings? Maybe they're having difficulties scaling their supply chain because they lost a big contract with a major supplier. Do you know enough about the domain to account for how much that should affect the stock price? Who knows, maybe there's even a seasonality factor to the number of people who go to eat spicy food, and your guesstimates will fall apart in 6 months.

I wouldn't even bother with this kind of investing. It's just gambling. If you seem to be winning over time it's either because you're lucky or because the markets are going up in general. So just invest in index funds- you'll have lower volatility and you won't be betting against people who have nothing to do but sit around all day thinking about how to beat you.

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