Among factor ETFs, low volatility has attracted the largest allocation since the Dec. 24th stock-market bottom, adding $6.3 billion. Interest in low-volatility ETFs typically rises after a market drop like the one in 4Q. Multi-factor ETFs swelled by $2.5 billion, likely as investors replaced active funds starting in late 2018. Value ETFs have posted the largest outflows among factors -- $2.7 billion -- despite performing relatively well. John Davi, founder and chief investment officer of Astoria Portfolio Advisors, talks with Bloomberg's Taylor Riggs, Eric Balchunas and Carolina Wilson about flows in ETFs, low volatility ETFs and emerging markets. (Source: Bloomberg)