US Markets
Home›US Markets›Indices›September seasonality fears fade as stocks start the m…
September seasonality fears fade as stocks start the month stronger
Ryan Detrick of Carson Group said the market is not “limping” into September, citing SPY gains and low volatility, but he warned the 10-year Treasury yield near 4.67% could still pressure valuations.
Yahoo Finance reports that Carson Group chief market strategist Ryan Detrick argued on CNBC that September’s historical reputation for stock weakness does not match current conditions. He said September’s losses are typically linked to weak markets entering the month, and that this year the S&P 500 is not starting from that kind of backdrop.
The article points to performance and volatility as evidence of a different setup. SPDR S&P 500 ETF Trust, SPY, is up 5.47% over the trailing month and 12.82% year to date, while the VIX was 14.51 on August 27, 2026.
Detrick also highlighted breadth, saying nearly 70% of S&P 500 stocks are above their 200-day moving average, which he said suggests the advance is broad rather than driven by a few large names. He added that the level of the 10-year Treasury yield, at 4.67%, near the 92nd percentile over the past year, poses a threat to equity valuations.
The piece concludes that, although September has been among the weakest months in the S&P 500’s history, seasonality arguments may be less persuasive when the market is already strong going into the month, according to Detrick’s reasoning.
Latest closeS&P 500 7,711.76 ▼0.2%|VIX 14.43 ▼0.6%