Investors moved $45.7 billion into US-listed equity exchange-traded funds (ETFs) in the eight trading days ended Thursday, November 17, in the biggest eight-session inflow on record, according to TrimTabs Investment Research.
Donald Trump's victory in the US presidential election has created a stock buying frenzy and swift exits from bond ETFs and mutual funds.
TrimTabs said its research showed that the eight-day inflow equalled 3.2 percent of the funds' assets and broke the previous eight-day record of $43.5 billion set in August 2007.
TrimTabs data for those investments date back to 1993 when the first US ETFs started trading. An ETF is a security that tracks a basket of assets.
In comparison bond mutual funds have lost an estimated $15.0 billion this month through November 17, on track for their biggest monthly outflow since December 2015, Trimtabs said.
US-listed bond ETFs shed $2.3 billion on the past five trading days, cutting their month-to-date inflow to $800 million.
Bond funds have brought in almost $1.5 trillion since the start of 2009, as investors have been assuming that central bankers would always keep bond prices rising, according to TrimTabs Chief Executive David Santschi.
"If more of them head for the exits, the consequences for the highly leveraged US economy could be unpleasant," said Santschi.