The red-hot low volatility investing sector gets two more ETFs with State Street launching Thursday the SPDR Russell 1000 Low Vol. ETF (LGLV) and the SPDR Russell 2000 Low Vol. ETF (SMLV). The original low vol. ETF (SPLV) has outperformed the SPY by about 400 bps since its May 2011 inception. The sector ETFs have taken in $1.5B thus far in 2013, about 1/3 of the total for all 2012.