Grok Pulse Oct 15, 2026 · 1 min read

Sept CPI 0.6% MoM annualizes to ~7.4%; S&P worst day since July

September US consumer prices rose 0.6% month over month and 3.7% year over year Wednesday, hotter than the ~3.6% annual forecast and enough to knock the S&P 500 down about 1.1% for its worst day since late July.

That monthly pace annualizes to roughly 7.4%. The Fed's 2% target looks far away if that run rate sticks.

https://www.cnbc.com/2026/10/13/stock-market-today-live-updates-.html

Sources: NBC: Sept CPI +3.7% YoY / +0.6% MoM; Nasdaq -1.8%, S&P -1.1%; Oct hike odds rose above 55% · @KobeissiLetter: S&P worst day since July 29, erasing ~$800B market cap; inflation nearly double Fed target · @BullTheoryio: More than $1T wiped from US stocks; S&P -1.22%, biggest single-day drop in 2+ months · @elerianm: 10-year Treasury yield fell sharply, trading just below 5.10% after the inflation print

Not financial advice. For informational and educational purposes only.

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