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 TRW Automotive (NYSE: TRW) drove to a 15% gain after the company reported fourth-quarter earnings last night.

So what: TRW filled its revenue tank to $4 billion in the fourth quarter, which lead to record full-year sales of $16.2 billion. Adjusted earnings per share came in at $1.84, which added up to $7.42 per share for the full year.

Now what: Guidance actually turned out lower than expected, with fiscal 2012 sales pegged between $16 billion and $16.4 billion, which was lower than the $16.6 billion consensus, but investors didn't seem to mind. During the quarter, the company completed a previously announced divestiture of some of its non-safety-related businesses in Asia, allowing it to focus more on the region. TRW's debt levels have also reached historic lows for the company.

Interested in more info on TRW Automotive? Add it to your Watchlist by clicking here.