US ISM Manufacturing Index Hits 4-Year High, Fuels Fed Rate Hike Speculation

The ISM manufacturing index reached 55.6, marking a 4-year high and seven consecutive months of expansion, which could provide the Federal Reserve with room to further tighten monetary policy. Record S&P 500 profit margins of 16.7% in Q2 2026 indicate a thriving corporate sector, potentially weakening arguments against additional Fed tightening. Rising CPI, increasing energy prices due to the Iran conflict, and a resilient economy suggest a potential shift in the Fed's rate hike timeline from 2027 to 2026.