Bitcoin fell below $84,000 on Wednesday after a stronger-than-expected US flash PMI sent Treasury yields higher, reversing a morning rally above $87,000 on Binance. The S&P Global composite reading rose to 58.4 in September from 56.0 in August, its fastest expansion since July 2021, while the manufacturing gauge climbed to 57.0, its strongest since May 2022. The report also showed the fastest increase in input prices since October 2022, driven partly by higher oil-related fuel and transport costs, while hiring reached its quickest pace since June 2022. The 10-year Treasury yield rose to 5.058% after the release from a 4.96% Tuesday close. Higher yields can reduce the appeal of non-interest-bearing assets such as Bitcoin and complicate expectations for monetary-policy easing. The Federal Reserve raised its benchmark rate to 3.75%-4% on September 16, saying the move would support a return to 2% inflation. The decline followed US spot Bitcoin ETF inflows of $714.7 million on Tuesday and $999 million on Monday, leaving traders watching whether that demand can withstand higher yields. Final September PMI readings are due October 1 for manufacturing and October 5 for services.