Hydroelectricity ETFs List | NYSE, NASDAQ & AMEX

Symbol	Grade	Name	Weight
QPFF	D	American Century Quality Preferred ETF	2.07
PFFV	B	Global X Variable Rate Preferred ETF	0.96
PFXF	C	Market Vectors Preferred Securities ex Financials ETF	0.49
PSK	D	SPDR Wells Fargo Preferred Stock ETF	0.32
PFLD	C	AAM Low Duration Preferred and Income Securities ETF	0.29
PFF	C	iShares US Preferred Stock ETF	0.27
VRP	A	PowerShares Variable Rate Preferred Portfolio	0.19
PFFD	C	Global X U.S. Preferred ETF	0.19
SMTH	D	ALPS Smith Core Plus Bond ETF	0.06

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