NEW YORK ( TheStreet) -- First Solar ( FSLR) was the worst-performing stock in the S&P 500 on Thursday morning. The S&P 500 was rising 9.39 points, or 0.69%, to 1,378.10.
Shares of First Solar fell 2.71% to $21.89. The Walton family of Wal-Mart ( WMT) fame, which is the largest investor in First Solar, will have a representative on First Solar's extended board, according to a Securities and Exchange Commission filing on Wednesday. First Solar was the best-performing stock in the S&P 500 on Wednesday After it hit a 52-week low on Tuesday of $20.03. First Solar has an estimated price-to-earnings ratio for next year of 5.38 times; the average for renewable energy equipment companies is 9.11. For comparison, GT Advanced Technologies ( GTAT) has a lower forward P/E of 4.6; SunPower's ( SPWR) forward P/E is 11.32. Twenty-seven of the 39 analysts who cover First Solar rated it hold. Six analysts gave the stock a buy rating and another six rated it hold. TheStreet Ratings gives First Solar a C- grade and hold rating. The stock has fallen 35.28% year to date. -- Written by Alexandra Zendrian >To contact the writer of this article, click here: Alexandra Zendrian >To submit a news tip, send an email to: firstname.lastname@example.org. >To follow the writer on Twitter, go to Alexandra Zendrian.