U.S. spot Bitcoin ETFs experienced $172.89 million outflows last week amidst a wider crypto market sell-off.The outflows were triggered by President Trump's new tariff strategy and trade tensions.Grayscale's Bitcoin Trust (GBTC) saw the largest fund withdrawals, losing $95.5 million.Despite the overall trend, Franklin Templeton and Fidelity's Bitcoin funds received $61.8 million in net inflows.