What happened 

It was a strange month for First Solar, Inc. (NASDAQ:FSLR). The stock jumped 16% in February, according to data provided by S&P Global Market Intelligence, as solar stocks generally surged. But most of the gains have been given back early in March, so here's a look at what's going on. 

So what 

Most of First Solar's rise was really leading up to and shortly after SunPower's earnings report as the competitor made fairly bullish comments about the solar industry. There was a "rising tide lifting all boats" (or stocks, in this case) effect, and since First Solar and SunPower often trade together they both popped after SunPower's earnings. 

Image of a First Solar fixed tilt solar farm.

Image source: First Solar.

But when First Solar's own earnings report came out, the reaction was quite different. The company reported a $6.92 loss per share in the fourth quarter, driven by one-time restructuring charges, and management actually lowered 2017 GAAP profit guidance because of a delay in a project sale. None of these charges or the outlook was really surprising given the fact that most of it was disclosed previously, which is one reason shares recovered most of their losses shortly after the earnings report. And as I discussed in my earnings recap, the company is making solid progress on upgrading its operations to new solar technology.

The drop early in March has been a slide that's affected all solar shares. And in many ways it appears all solar stocks are linked together for the time being. 

Now what 

As much as shares have moved lately, I don't think there's much reason to change the way you feel about First Solar after the past month. The company announced a few supply agreements, which is business as usual, but we won't really know where the company stands until the Series 6 product starts rolling off the production line in 2018. And it could be a long and tumultuous wait for investors to get there. 

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.