ARK's Cathie Wood just keeps buying Coinbase and getting more inflows

While the rest of Wall Street was ditching Coinbase stock, Wood and her team stuck to their playbook and used the drop to increase holdings, adding about 860,000 shares in the week through Thursday

After one of the most dramatic weeks yet for ARK Investment Management, Wall Street can no longer have any doubts: Cathie Wood is sticking with her strategy -- and investors are sticking with her.

The chances of both have been questioned this year as a selloff in speculative tech stocks laid waste to her future-focused exchange-traded funds. Wednesday was a particular low point, with the flagship ARK Innovation ETF (ticker ARKK) slumping 10% in its third-worst drop on record.

One of the biggest drags that day was Coinbase Global Inc., the largest US cryptocurrency exchange, which tumbled 26% after disappointing results and