Assets invested globally in the combined universe of exchange-traded funds and exchange-traded products reached an all-time high of US$3.913 trillion as of the end of March, according to ETFGI, a London-based research and consulting firm.

More than $66 billion flowed into ETFs and ETPs in March, which is the 38th consecutive month of net inflows. The first quarter saw a record $197 billion in inflows.

ETFGI said that as of the first quarter there were 6,771 ETFs/ETPs with 12,750 listings totalling $3.913 trillion in assets from 305 providers listed on 67 exchanges in 55 countries.

iShares led the pack with asset flows of $27.3 billion in March, followed by Vanguard ($13.6 billion) and Nomura AM ($3.7 billion).

For the quarter, the leader board was topped by iShares ($64.4 billion), Vanguard ($42.8 billion) and SPDR ETFs ($13.9 billion).