受比特币跌势影响，美股加密板块盘前普跌，Coinbase(COIN.O)跌2.1%，Strategy跌2.5%，Riot Platforms跌3.9%，HUT 8 Mining跌2.7%，MARA Holdings跌3.7%，Cleanspark跌3%，ProShares比特币策略ETF和iShares比特币信托ETF均下跌2%。

Core Viewpoint - The cryptocurrency sector in the U.S. stock market is experiencing a pre-market decline, primarily influenced by the downward trend of Bitcoin [1] Group 1: Market Performance - Coinbase (COIN.O) shares fell by 2.1% [1] - Strategy's stock decreased by 2.5% [1] - Riot Platforms saw a decline of 3.9% [1] - HUT 8 Mining dropped by 2.7% [1] - MARA Holdings experienced a 3.7% decrease [1] - Cleanspark's shares fell by 3% [1] - Both ProShares Bitcoin Strategy ETF and iShares Bitcoin Trust ETF declined by 2% [1] Group 2: Bitcoin Price Impact - The overall decline in the cryptocurrency sector is attributed to the falling price of Bitcoin against the U.S. dollar [1]