Looking at units outstanding versus one week prior within the universe of ETFs covered at ETF Channel, the biggest outflow was seen in the Invesco WilderHill Clean Energy ETF, where 4,280,000 units were destroyed, or a 16.7% decrease week over week. Among the largest underlying components of PBW, in morning trading today Azure Power Global is off about 0.3%, and Daqo New Energy is lower by about 4.6%.