Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.
What: Shares of private post-secondary school Education Management
So what: There isn't much going on in paid-education land today. Rival ITT Educational Services
Now what: ITT's much higher average trading volume probably saved that stock from Education Management's flailing today. Low-volume stocks are easily manipulated, whether intentionally or not, and an even lower-volume trading day just magnifies the liquidity problem. This is why we Fools always prefer set-price limit orders over more random market orders on that class of investments.
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Fool contributor Anders Bylund holds no position in any of the companies discussed here. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool is investors writing for investors.