Mind on the MarketChart of the Week
中文标题
市场洞察 · 本周图表
Core conclusion · Tlines extraction
State Street examines the bottom decile of S&P 500 monthly returns (47 months, 1990-2026) to see which assets held up. The index averaged a 7.33% monthly decline; investment-grade credit and Treasuries posted positive average returns, and gold was the strongest performer. Long Treasuries led in growth scares (+2.66%); in inflation/rate shocks no asset class was positive, and gold, crude and loans lost least. Four straight double-digit S&P years occurred only three times since 1928.
- Institution
- State Street
- Published
- 10/19/2026
- Research topic
- S&P 500 · Gold · Inflation
- Time horizon
- Not explicitly stated
Key arguments
- Bottom-decile S&P 500 months averaged a 7.33% decline; IG credit and Treasuries still returned positively, and gold led all assets.
- Hedge effectiveness depends on the shock: long Treasuries (+2.66%, positive in 71% of episodes) worked in growth scares, not inflation/rate shocks.
- Gold was the most consistent diversifier, gaining in 75% of growth-scared months and falling least in inflation/rate shocks.
- Betas are not static: Treasury beta turned positive over the past three years, while broad commodities and crude flipped negative and gold held near zero.
Key numbers
- Average S&P 500 return in bottom-decile months
- -7.33%
- Long US Treasuries average return, growth scares
- +2.66%
- Gold positive-return share, growth scares
- 75%
- Prior four-year double-digit S&P 500 streaks since 1928
- 3
- Sample of worst S&P 500 months analysed
- 47
Main risks
- Inflation/rate-shock conclusions rest on only eight observations; shock classification is judgment-based.
- Results are descriptive, not predictive; history does not signal an imminent sell-off.
- Index returns exclude fees, costs and taxes, and asset histories differ in start date and coverage.
Corresponding source evidence
To assess downside protection, we examined the bottom decile of monthly S&P 500 total returns (47 observations) and evaluated which asset classes historically held up best during these periods.
Even more notable, US investment-grade credit and Treasuries generated positive average returns, providing both absolute and relative downside protection during the S&P 500’s weakest months.
Gold has maintained a beta near zero across both periods.
Context: the conclusion is Tlines' automated extraction, not the institution's wording. Quoted evidence is publisher wording. Scope and date must travel with the conclusion.
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AI analysis
Cross-institution comparison · SPX
| Institution / report | Published | Direction | Source-checked target | Horizon |
|---|---|---|---|---|
| State StreetMind on the Market · Chart of the Week | 10/19/2026 | Bearish | — | Not stated |
| Saxo BankCorrelation returns the index follows - Options Brief | 10/19/2026 | Bearish | — | Not stated |
| Scotiabank EconomicsGLOBAL ECONOMICS · DAILY POINTS | 10/19/2026 | Neutral | — | Not stated |
| Saxo BankMarket Quick Take - Chipmakers extend their slide as Brent holds above 107 | 10/19/2026 | Bearish | — | Not stated |
How this page was produced
Tlines extracted the conclusion, arguments, numbers and risks above from the report published by State Street on 10/19/2026, then structured them for comparison. The publisher's own wording is reachable through the source link on this page and is displayed in full above. Last updated 10/19/2026. Methodology · Source policy · AI usage · Request a correction