Key Takeaways First Solar shares gained in premarket trading Wednesday after the solar panel maker topped analysts' fourth quarter bottom-line estimates and issued better-than-expected full-year earnings guidance. CEO Mark Widmar said the company continues to see strong mid- to long-term demand, especially in the United States. The company expects to receive between $1 billion and$1.05 billion in tax credits this year. First Solar shares may face selling pressure around $174 near the lower trendline of a W ...