October 30, 2026
The third quarter growth revision came in hot alongside an upward surprise in core inflation, knocking the S&P 500 lower.
What happened
Revised Q3 GDP data showed faster growth and hotter PCE inflation than expected. The S&P 500 fell as bond yields spiked and markets repriced rate cut expectations. The move erased roughly 500 billion dollars in market value.
Why it matters
Strong growth with sticky inflation breaks the expected chain where a softening economy lets the Fed cut rates. When inflation is hotter, the Fed stays on hold, bond yields rise, and the present value of future earnings shrinks. That directly reprices stocks, hitting rate-sensitive names and high-valuation multiples hardest.
The case against
Faster growth without a recession also means stronger earnings and cash flows over time. If the growth holds while inflation eventually moderates, the earnings base improves and markets can recover from a valuation reset.
What settles it
The next monthly core PCE print to see if the quarterly hot reading was a one-off or the start of reaccelerating inflation.