FSLR, ENPH, and NEE are three oversold solar energy stocks to keep an eye on The solar sector is filled with promise, but not necessarily profit at the moment. The solar exchange-traded fund (ETF) Invesco Solar ETF (TAN) is down 45.7% in the last 12 months, but are two of the funds' larger holdings ready to rally? FSLR Testing Key Trendline First Solar Inc (NASDAQ:FSLR) stock is down 2.6% to trade at $216.91 at last check, after a price-target cut from Baird to$307 from $344. The shares are pulling back fr ...