As stocks tumbled on Monday, Cathie Wood's Ark Investment Management put more than $70 million into tech stocks including Tesla Inc. (TSLA. O), Palantir Inc. (PLTR. N), Coinbase Inc. (COIN. O), AMD Inc., Tempus AI Inc. (TEM. O) and Robinhood Inc. (HOOD. O). Previously, Cathie Wood said in a social media post that the market is digesting the final stage of a rolling recession, and the US economy will usher in a deflationary boom in the second half of the year.