First Solar, Inc. (FSLR

​) stock jumped more than 3% on Thursday from the lower end of its price channel. While there was no specific news for the day, the stock was approaching a technical tipping point, and high option trading volume was enough to spur movement. The solar industry could see a turning point on Sept. 22 when the U.S. International Trade Commission (ITC) is set to decide whether Chinese companies are unfairly competing in the United States.

A petition by solar cell manufacturer Suniva to the ITC is aimed at protecting its business and the wider industry from Chinese competitors. The ITC is investigating whether crystalline silicon photovoltaic cells are being imported into the United States in such quantities as to be a substantial cause of serious injury, or the threat thereof, to the domestic solar…