Other solar makers and industry competitors also strengthened on the improved outlook. For example, First Solar (FSLR) rose 4.4% Thursday, SolarEdge Technologies added 5.8%, GCL-Poly Energy Holdings gained 6.0%, Meyer Burger Technology advanced 8.5% and JinkoSolar Holding (JKS) increased 7.9%.

However, Chinese solar panel makers continued to weaken, with China Singyes Solar Technologies Holdings down 7.2% on Thursday, which suggested that trade talks and the rising competitiveness of other global players are weighing on the Chinese solar panel industry.

TAN includes a 9.7% position in First Solar, 7.5% in SolarEdge Technologies, 5.7% in GCL-Poly Energy Holdings, 4.9% in Meyer Burger Technology, 4.0% in JinkoSolar Holding and 3.5% in SMA Solar Technology.

For more information on the photovoltaic panel industry, visit our solar category.