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 online family-history resource (Nasdaq: ACOM) surged 26% on Friday after its quarterly results and full-year sales outlook topped Wall Street expectations.

So what: Fueled by an impressive 33% spike in its subscriber base, Ancestry's first-quarter profit more than doubled to $9 million, or $0.18 per share, versus the average analyst estimate of $0.15 per share. While that may not seem like such a big beat, Mr. Market, who is sending the stock to new 52-week highs, is clearly thrilled with company's current business momentum.

Now what: The short term certainly looks positive for Ancestry. In fact, management raised its full-year revenue outlook range by $25 million and upped its current-quarter revenue forecast to $98 million to $100 million -- well above Wall Street estimates of $87 million. Ancestry shares are definitely on the hot side, but with its board also authorizing a $125 million stock repurchase program, they might still represent a reasonable way to go for growth.  

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

Fool contributor Brian Pacampara owns no position in any of the companies mentioned. is a Motley Fool Rule Breakers pick. Try any of our Foolish newsletter services free for 30 days.

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