Inflation environment: High

How US sectors performed when inflation was high

Since Jan 3, 1983, the record reads this regime on 29.8% of trading days, across 497 episodes with a typical run of 5 sessions. Across those sessions since Dec 22, 1998, Energy did best at +9.4% a year and Utilities did worst at -3.6%, against +5.8% for the S&P 500.

Figures as of Sep 23, 2026 · recomputed every trading day

The regime in the record

Share of trading days
29.8%
Separate episodes
497
Typical run
5 sessions
Longest run
32 sessions
Last seen
Sep 10, 2026
Today
Not in force

Sector by sector

Annualised mean return on the session after each regime day. Sorted by the regime figure.

AssetIn this regimeAll daysvs S&P 500Up sessionsVolatilitySessions
Communication Services XLCsince 2018+14.7%+12.3%+2.2%55%17.3%494
Energy XLE+9.4%+10.2%+5.8%52%24.9%2,030
Consumer Discretionary XLY+9.1%+10.4%+5.5%53%20.8%2,030
Materials XLB+8.6%+8.5%+5%51%22%2,030
Consumer Staples XLP+7.3%+5.3%+3.7%52%14.7%2,030
Industrials XLI+6.7%+9.4%+3.1%52%18.7%2,030
Information Technology XLK+3%+12.4%-0.6%54%24.7%2,030
Financials XLF+2.7%+7.8%-0.9%49%24.5%2,030
Health Care XLV+1.3%+8.5%-2.3%49%16.9%2,030
Utilities XLU-3.6%+5.4%-7.2%50%18.2%2,030
Real Estate XLREsince 2015-8.9%+5%-20.2%53%16.7%692

Context

AssetIn this regimeAll daysvs S&P 500Up sessionsVolatilitySessions
S&P 500 SPY+5.8%+10.2%—54%16.4%2,507
Nasdaq 100 QQQsince 1999+9.8%+13.4%+6.7%55%26.8%1,987
Russell 2000 IWMsince 2000-5.8%+9.8%-8.3%51%21.4%1,815
Long Treasuries TLTsince 2002-5.2%+1%-12.4%52%13.3%1,614
Gold GLDsince 2004+17.7%+11.7%+10.1%56%17.6%1,374

How this regime is defined

Inflation environment reads High in the daily regime record.

Method and limits

Descriptive statistics over the published regime record — not a backtest, a forecast or advice. Each regime day is credited with the NEXT session's return, so a regime never earns the move that revealed it. Returns are ETF price returns (dividends excluded), annualised as 252 × the mean session return; volatility likewise. Sector funds start in December 1998 (Real Estate in 2015, Communication Services in 2018); the regime record starts in 1980. Labels are the engine's as currently published and are recomputed when its method improves. A figure with fewer than 60 sessions is not shown.

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Questions

Which sectors did best when inflation was high?
Energy +9.4%, Consumer Discretionary +9.1%, Materials +8.6%. Annualised mean next-session returns since Dec 22, 1998; the S&P 500 returned +5.8%.
How common is this regime, and how long does it last?
It appears on 29.8% of trading days since 1983, in 497 separate episodes. The typical run is 5 sessions; the longest lasted 32 sessions.
Is this regime in force today?
No. It was last seen Sep 9, 2026 – Sep 10, 2026. The daily nine-axis reading is on the Regime Radar.
Is this a backtest?
No. It describes how assets behaved on the session after each day the regime was read, with no portfolio, costs or selection. A backtest would test a rule; this records a history.