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: Finisar (Nasdaq: FNSR) shares jumped 10% today after the company raised its second-quarter revenue outlook.

So what: Weak forecasts from Cisco (Nasdaq: CSCO) and Oclaro (Nasdaq: OCLR) have pushed Finisar lower recently, but the company is still confident revenue will blow past previous expectations. The company now expects second-quarter revenue of $240 million to $241 million and adjusted profit of $0.41 to $0.43, both well above original guidance.

Now what: Finisar is certainly on the right track, and the guidance increase is always a welcome site for investors. I'm buying today's move despite some weakness in the sector as a whole. I think Finisar can buck the trend.

Interested in more info on Finisar? Add it to your watchlist by clicking here.

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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