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: The wild ride continued for ICO Global (Nasdaq: ICOG) today when shares sank 13% in trading.

So what: What in the world is going on with this stock? Last week it plunged on no news at all and today's move is very similar. But alas, we're actually back down to a "normal" level after shares spiked for an instant on a huge trade to close the week on Friday.

Now what: There is no real news here, except the massive trade last week. It was that aberration that really makes today's move look so big. Look at the chart for the past week and you'll see shares are down only slightly for today. I don't see a reason to change your investment thesis, but with ICO Global hitting our popped/plunged list twice in the last week you never know what might happen tomorrow.

Interested in more info on ICO Global? Add it to your watchlist.

Fool contributor Travis Hoium does not have a position in any company mentioned. You can follow Travis on Twitter at @FlushDrawFool, check out his personal stock holdings or follow his CAPS picks at TMFFlushDraw.

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