A crypto analytics firm that two key investor cohorts have been snapping up Bitcoin (BTC) as the value of the king crypto plunged below $20,000 last week.

Santiment says that Bitcoin whales and sharks, or addresses holding 10 to 10,000 Bitcoin, gobbled up 40,557 BTC worth a staggering $821.50 million in the past week.

With the heavy accumulation from the largest Bitcoin holders, the firm says investors should keep an eye on the traditional markets for clues on what comes next for BTC.