The ARK ETFs concept includes several ETFs across different strategies managed by ARK Invest. ARK Invest is an investment firm founded by Cathie Wood.
Some investors attribute that to favourable quarterly results from big banks - their good earnings are an indication that the US economy is still healthy.
$ARK Innovation ETF (ARKK.US)$ $Shopify (SHOP.US)$ $Block (SQ.US)$ $PayPal (PYPL.US)$ $Super Micro Computer (SMCI.US)$ $McDonald's (MCD.US)$ $Hershey (HSY.US)$ $Yum! Brands (YUM.US)$ $Lululemon Athletica (LULU.US)$ $Logitech International (LOGI.US)$ $Enphase Energy (ENPH.US)$ $Lemonade (LMND.US)$