More than 99 percent of the $1.174 trillion in assets under management are in passive funds and a good portion of the active $5.2 billion ETF money actually is in one fund, the $1.56 billion Pimco Enhanced Short Maturity Strategy Fund (NYSEArca:MINT). This fund seeks both capital appreciation and current income through investment in exchange-traded products that include securities focused on inflation protection; real estate; commodities; and companies in the natural resources space. SSgA uses its Market Regime Indicator model that takes into account VIX, credit spreads and currency volatility to help determine asset allocation.