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 Gentex (Nasdaq: GNTX) jumped 10% today after the company released record earnings.

So what: Fourth-quarter sales were up 25% to $222.1 million and net income jumped 23% to $36.9 million. The company's Rear Camera Display and SmartBeam mirrors drove sales and increased auto sales helped the supplier in 2010.

Now what: Gentex's innovative products are gaining traction in the automotive industry as customers demand more features. The stock is a little on the expensive side trading at 30 times 2011 estimates, but improving results may make Gentex worth the price. I am buying today's move and think demand for Gentex products will continue to drive better than expected results in 2011.

Interested in more info on Gentex? 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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