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: Shareholders of Hollysys Automation Technologies (Nasdaq: HOLI) suffered a massive 19% drop in the value of their shares today.

So what: Last week, Hollysys investors cheered a sudden run-up in their shares' price. But no sooner had the shares run up, than analyst Roth Capital (a previous backer of the stock) brought them tumbling down again with a downgrade to neutral.

Now what: That leaves us with yet another Chinese small cap that by all rights should be a bargain (11.6 P/E ratio, 17.5% growth rate), but which trades like investors have little faith in its numbers. Hollysys says it's profitable, yet it burned more than $31 million worth of cash over the last 12 months. Granted, the company still has $96 million more in cash to burn, against less than $42 million in debt. But if you're looking for a company that's growing its cash pile, rather than shrinking it, you'd probably best look elsewhere.

Add Hollysys to your Watchlist to keep track of its ups and downs.

Fool contributor Rich Smith holds no position in any company mentioned. Click here to see his holdings and a short bio. Try any of our Foolish newsletter services free for 30 days. 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 has a disclosure policy.