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 Healthspring (NYSE: HS) jumped 10% today after the company released an outstanding earnings report.

So what: Fourth-quarter earnings per share of $0.88 topped the $0.77 analysts were expecting, but revenue was even more impressive. Revenue in the quarter came in at $881.6 million -- more than $100 million higher than estimates.

Now what: Higher membership levels provided a boost this quarter and management expects continued growth in 2011. Earnings range estimate of $3.60 to $3.90 per share was at the high end of analyst estimates of $3.67 for the year. With this kind of growth and a forward P/E of 10 I expect good things from this stock going forward.

Interested in more info on Healthspring? 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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