The U.S. Treasury purchased $5.187 billion of long-dated government bonds on Sept. 10 in the first operation under its expanded buyback program, but the initial market response offered no sign of easier financial conditions for Bitcoin. The department accepted 23 of 40 eligible off-the-run issues maturing from February 2037 through August 2046 after receiving $10.489 billion of offers against a $6 billion ceiling. The 10-year nominal Treasury yield rose 12 basis points to 4.95%, while the 10-year real yield increased 9 basis points to 2.55%, raising the opportunity cost of holding non-yielding Bitcoin. U.S. spot Bitcoin ETFs recorded net outflows of $282.7 million, and Bitcoin recovered to about $77,800 after a Sept. 10 reference close of $76,568. Treasury's operation was intended to improve liquidity for older securities rather than function as a Federal Reserve monetary-policy purchase. Market attention now turns to U.S. consumer inflation data, yield movements and whether Bitcoin ETF flows reverse.