Newsig · MarketWatch
Inflation rises again and keeps pressure on Fed
The main inflation gauge used by the Federal Reserve to set U.S. interest rates rose sharply in August, underscoring why the central bank raised interest rates earlier this month for the first time in three years.
Why it matters
SPY (SPDR S&P 500 ETF) · Why linked: Inflation data directly influences Fed rate expectations and broad equity valuations. Market context: Higher-than-expected inflation could pressure the S&P 500 as it reinforces expectations of tighter monetary policy.
TLT (20+ Year Treasury) · Why linked: Treasury prices are sensitive to inflation prints and Fed rate path expectations. Market context: Rising inflation typically pressures long-duration Treasuries as the Fed is less likely to cut rates soon.
DXY (US Dollar Index) · Why linked: Sticky inflation tends to support the dollar by keeping the Fed hawkish relative to other central banks. Market context: A hotter inflation reading is likely to strengthen the dollar against major peers.
How SPY, TLT usually react
This story is too recent for its own reaction record — we score each asset against the actual price move 24h after publication. These are the long-run figures across every event we have tracked for them.
| Asset | Events | Avg max move | Closed lower |
|---|---|---|---|
| SPY | 15 | +0.71% | 67% |
| TLT | 13 | +0.65% | 69% |
Curated by Newsig — News in. Signal out.
How the reaction data is measured · Editorial policy