Ten money market mutual funds have attracted more inflows year to date than the No. 1 "flow-getting" exchange-traded fund — iShares MSCI USA Quality Factor ETF, which has taken $7 billion, senior Bloomberg ETF analyst Eric Balchunas noted in a tweet Tuesday.
"This is next level flow-tensity," Balchunas said.
Market players and analysts have noted a surge in cash flowing into money market mutual funds recently, as investors seek better yields than many bank deposit accounts offer.