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.