An address identified as 0xD83…Fd7 grew its capital from $3 million to $10 million in five days by shorting Bitcoin and Ethereum during a market decline. Current positions total $250 million, comprising 1,640 BTC shorts valued at $150 million and 31,093 ETH shorts valued at $100 million. Floating profits are $2.04 million from BTC and $4.77 million from ETH shorts. The activity highlights highly leveraged bets on continued downward price movement.