Bitcoin (CRYPTO: BTC) slipped below $85,000 Wednesday, down 2%, as the US 10-year Treasury yield surged past 5% to levels unseen in 19 years. What Triggered the Yield Spike Widely-followed crypto analyst Bull Theory posted on X that the 10-year yield jumped right after September's flash PMI data blew past forecasts, with the composite PMI hitting a five-year high.