Fundamental cycle: Expansion

How US sectors performed when the business cycle read expansion

Since Jan 3, 1983, the record reads this regime on 47.5% of trading days, across 55 episodes with a typical run of 55 sessions. Across those sessions since Dec 22, 1998, Information Technology did best at +13.8% a year and Materials did worst at +5%, against +12.2% for the S&P 500.

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

The regime in the record

Share of trading days
47.5%
Separate episodes
55
Typical run
55 sessions
Longest run
493 sessions
Last seen
Sep 23, 2026
Today
In force, since Jul 31

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
Information Technology XLK+13.8%+12.4%+5%55%23.5%3,518
Energy XLE+11.9%+10.2%+3.1%52%23.8%3,518
Consumer Discretionary XLY+8%+10.4%-0.9%53%19.9%3,518
Industrials XLI+7.7%+9.4%-1.1%53%16.6%3,518
Communication Services XLCsince 2018+7.1%+12.3%-5.2%53%20.1%1,472
Health Care XLV+6.9%+8.5%-1.9%51%15.3%3,518
Utilities XLU+6.1%+5.4%-2.7%53%16.2%3,518
Financials XLF+5.4%+7.8%-3.4%51%19.8%3,518
Consumer Staples XLP+5.2%+5.3%-3.6%52%13.9%3,518
Materials XLB+5%+8.5%-3.8%51%19.6%3,518
Real Estate XLREsince 2015+4%+5%-8.6%53%16.8%1,867

Context

AssetIn this regimeAll daysvs S&P 500Up sessionsVolatilitySessions
S&P 500 SPY+12.2%+10.2%—54%15.7%4,563
Nasdaq 100 QQQsince 1999+13.1%+13.4%+4.6%55%24.8%3,466
Russell 2000 IWMsince 2000+6.5%+9.8%-2.2%53%19.6%3,166
Long Treasuries TLTsince 2002-0.7%+1%-11.7%51%12.6%2,980
Gold GLDsince 2004+12.6%+11.7%+0.6%54%16.6%2,753

How this regime is defined

Fundamental cycle reads Expansion 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 the business cycle read expansion?
Information Technology +13.8%, Energy +11.9%, Consumer Discretionary +8%. Annualised mean next-session returns since Dec 22, 1998; the S&P 500 returned +12.2%.
How common is this regime, and how long does it last?
It appears on 47.5% of trading days since 1983, in 55 separate episodes. The typical run is 55 sessions; the longest lasted 493 sessions.
Is this regime in force today?
Yes — in force since Jul 31, 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.