Top 5 ETFs over the last 5 days (greater than $100m AUM).

$PBW (Invesco WilderHill Clean Energy) 6.2%
$REMX (VanEck Vectors Rare Earth/Strategic Metals) 4.9%
$XRT (SPDR S&P Retail) 3.2%
$QCLN (First Trust NASDAQ Clean Green Energy) 2.9%
$ARKQ (ARK Industrial Innovation) 2.6%