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: JinkoSolar (NYSE: JKS) shares went dark today, falling 11% as the entire solar sector has been hurt by downgrades.

So what: An analyst at Credit Suisse downgraded many of Jinko’s solar competitors, and it appears to be sucking Jinko down with it. And maybe Jinko got ahead of itself earlier in the month when it was hotter than a solar flare.

Now what: It seems like every few months solar stocks go through a roller coaster like this after someone gets worried demand will slow down. I look at Jinko’s stellar earnings report earlier this month with improving revenue, margins, and net income and see a stock on sale today. We may be in for a rough couple of weeks, but solar will bounce back. It always does.

Interested in more info on Jinko Solar? 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.

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.