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: Solar wafer specialist LDK Solar (NYSE: LDK) saw its shares rocket 14% in intraday trading, after it raised its third-quarter revenue and shipment estimates.

So what: Specifically, LDK expects to report revenue in the range of $610 million to $640 million, versus previous estimates of $570 million to $600 million. With the likes of Ascent Solar (Nasdaq: ASTI), Solarfun (Nasdaq: SOLF), and Canadian Solar (Nasdaq: CSIQ) all announcing stock-spiking news today, the solar sector is certainly shaking. 

Now what: While today's news is encouraging for LDK's short-term, I'd look elsewhere for better long-term value. LDK is now up about 90% over the past three months alone, outperforming the likes of Trina Solar (NYSE: TSL) and Yingli (NYSE: YGE), which both sport higher returns on capital. Of course, no matter which way you decide to play, please proceed with caution. Solar stocks are extremely hot.

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

Fool contributor Brian Pacampara owns no position in any of the companies mentioned. Try any of our Foolish newsletter services free for 30 days.

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