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 Xoom (UNKNOWN:XOOM.DL) have rocketed higher today and are now sitting 15% above yesterday's close after obliterating analyst estimates with strong earnings.

So what: Wall Street was looking for revenue of $26.2 million and a loss of $0.07 per share. Xoom didn't settle for this -- its results, which showed 60% year-over-year revenue growth to $33.5 million and a stunning $0.14 in adjusted earnings per share, were far better. Third-quarter guidance was also slightly ahead of estimates, with a range of $27 million to $28 million in revenue coming up against the $26.7 million consensus, and a $0.02 to $0.07 loss per share against the $0.06 loss per share Wall Street had sought.

Xoom's full-year guidance for 2013 was significantly improved by today's big outperformance, as the company now sees an EPS range of $0.05 to $0.13, in stark contrast to the $0.18 loss per share that Wall Street projected. Xoom's $115 million to $117 million revenue guidance for 2013 also trounced the $106.9 million consensus.

Now what: Xoom is certainly zooming, with high double-digit growth in revenue, transaction volume, and active customers to go along with a major swing from loss to profit. The company's Indian business was called out as a particular source of strength, and with so much potential left on the subcontinent, there might be a lot more to this story. Investors should start taking a closer look at this upstart, which has now risen well past its early 2013 IPO closing price after enduring a largely mediocre public life.

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Fool contributor Alex Planes has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.