Bit Digital將全面退出比特幣挖礦，聚焦乙太坊與AI基礎設施

CFTC 釐清加密保證金規則：BTC、ETH 資本扣除率 20%，允許投入衍生品市場

美國商品期貨交易委員會（CFTC）近期發布FAQ，釐清加密貨幣在衍生品市場作為保證金的使用細則，明確比特幣與以太坊的資本扣除率為20%，穩定幣為2%。試行計畫於前三個月僅限三種幣種，三個月後則擴充幣種並放鬆申報要求，符合條件的加密資產可作為保證金，標誌著美國金融體系對區塊鏈資產的逐步接納。

主流 CEX、DEX 資金費率全面轉負，BTC 跌 1.93%、ETH 跌 2.18%

March 22, Bitcoin reported $69,275.33, with a 24-hour decline of 1.93%; Ethereum reported $2,103.95, with a decline of 2.18%. The market is comprehensively bearish, with bears dominating, and funding rates are universally negative, indicating that bears need to pay fees to longs.

Polymarket 預測「比特幣 3 月跌至 6.5 萬美元」概率升至 49%

Gate News 消息，3 月 22 日，隨著比特幣短時跌破 6.9 萬美元，Polymarket 預測市場上「比特幣 3 月跌至 6.5 萬美元」的預測概率升至 49%。此外，預測比特幣跌至 6 萬美元的概率為 16%，預測漲至 8 萬美元的概率為 12%。

比特幣期權顯示出擔憂，即使資金仍以相對較低的速度從ETF中流出

比特幣 (BTC) 價格在週五交易時段維持在 70,000 美元附近的橫盤狀態，此前未能重新突破 75,000 美元的關口。這一走勢與連續兩個交易日美國現貨比特幣 ETF基金的資金淨流出相吻合，從而逆轉了之前的上升趨勢。

Bitcoin mining difficulty decreased by 7.76% to 133.79T, marking the second largest decline this year

Bitcoin mining difficulty decreased by 7.76% on March 21 to 133.79 T, marking the second-largest decline this year. JPMorgan analysts predict that Bitcoin mining costs have fallen to $77,000, still higher than spot prices. More and more mining companies are pivoting their infrastructure toward AI computing power. Core Scientific plans to sell Bitcoin holdings in 2026 to fund AI expansion, while Bitdeer has liquidated its Bitcoin positions. Multiple companies are formulating diversification strategies.