Bitcoin surged above $81,000 on Saturday as a wave of short liquidations and renewed spot demand helped the cryptocurrency rebound from losses triggered by higher interest rates and a setback for U.S. crypto legislation. Bitcoin climbed as high as $81,702 on Sept. 18 after trading near $76,400 a day earlier, marking its first move above $80,000 since Sept. 7, and was trading at $81,309.4 as of 22:50 ET, up 5.62% for the day. The rebound followed a difficult week in which the Federal Reserve raised interest rates by 25 basis points and the Bank of Japan followed with a quarter-point increase to 1.25%, its highest policy rate in 31 years, while U.S. spot Bitcoin ETFs recorded about $159 million of inflows on Sept. 17. A sharp short squeeze then accelerated Friday's rally, with roughly $192 million of leveraged crypto positions liquidated within one hour, including more than $183 million in shorts, of which Bitcoin shorts accounted for about $119 million. Regulatory uncertainty remains in focus after the U.S. Senate failed to advance the CLARITY Act this week, though the CFTC has submitted a separate crypto market proposal to the White House Office of Management and Budget and the SEC introduced an innovation exemption giving qualifying platforms a five-year route to offer onchain trading in certain tokenized stocks without registering as securities exchanges.