21世纪经济报道·2025-11-21 12:45Group 1 - The article highlights a significant decline in multiple chip and technology stocks in the US market, with Nvidia experiencing a drop of up to 3% and other major players like TSMC and Intel also seeing declines of over 2% [1][2] - Concerns are raised regarding the profitability of artificial intelligence projects, which may not generate sufficient returns to justify the substantial investments made in technology [2][3] - The article notes that Bitcoin has fallen below the $81,000 mark, dropping over 12%, alongside significant declines in other cryptocurrencies such as Ethereum and Solana, indicating a broader market sell-off [3][4] Group 2 - The total liquidation amount in the cryptocurrency market over the past 24 hours exceeded $2.1 billion, with over 421,000 traders being liquidated [4][5] - Analysts suggest that the volatility in technology valuations could lead Bitcoin to drop to $75,000 by the end of the year, although a rebound is expected shortly after [5]