First Solar stock heads into the open after a 5.6 percent drop

At the close on September 16, 2026, First Solar stock fell 5.6 percent to USD 191.07 on the Nasdaq. The shares underperformed the Nasdaq Composite, which finished at 25,978.43 and was nearly flat.

First Solar stock closed at USD 191.07 on the Nasdaq on September 16, 2026, down 5.6 percent from the prior session. The move left the shares well below the Nasdaq Composite, which ended at 25,978.43 and fell 0.01 percent.

September 16, 2026 recap

First Solar Inc. (ISIN US3364331070, Nasdaq: FSLR) fell after Reuters reported that the company withdrew a patent infringement complaint before the U.S. International Trade Commission and shifted its focus to federal court lawsuits against rivals. Yahoo Finance showed the shares at USD 190.64 late in the session, with volume at 2,597,297 shares.

The stock traded between USD 190.30 and USD 205.52 during the day. Its 52-week range was USD 182.99 to USD 320.95, so the close sat 4.4 percent above the low and 40.5 percent below the high.

Today

First Solar has a conference appearance today at the International Conference on Alternative Energy Sources, which lists September 17, 2026 as the start date, according to Academic World Research. U.S. macro releases and the Fed follow-up also remain relevant for solar names after the rate decision.