Many of the funds with the most assets—SPY, QQQ, IWM, EFA, IEMG—also saw the most action over the past 30 days.
With the pending addition of an approximate 1.5% weighting in Tesla, investors in ETFs such as SPY are being reminded that passive funds undergo regular changes.
After lagging bond funds for most of 2020, ETFs tracking equities lured a record $81 billion last month, bringing their total haul for the year to $196 billion.
Funds focused on clean energy, technology and innovation had the best runs over the past three years.