A significant contract whale, identified as pension-usdt.eth, has closed its long Bitcoin positions and initiated short positions as Bitcoin's price fluctuated. According to Hyperinsight monitoring, the whale closed its long positions when Bitcoin reached $66,200 and began shorting at $69,134. The whale is currently shorting 410 BTC with 3x leverage, amounting to a position value of $28.44 million. The entry price for this position is $69,334, with a liquidation price set at $147,679. The whale continues to expand its short position as of the latest update.