Real interest rates: Zero bound

How US sectors performed when real yields were zero bound

Since Jan 3, 1983, the record reads this regime on 25.6% of trading days, across 274 episodes with a typical run of 7 sessions. Across those sessions since Dec 22, 1998, Information Technology did best at +16.9% a year and Materials did worst at +7.4%, against +14.9% for the S&P 500.

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

The regime in the record

Share of trading days
25.6%
Separate episodes
274
Typical run
7 sessions
Longest run
66 sessions
Last seen
Jul 2, 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
Information Technology XLK+16.9%+12.4%+4.8%55%23%2,217
Communication Services XLCsince 2018+16.2%+12.3%-1.6%56%21.4%642
Industrials XLI+13%+9.4%+0.8%53%18.1%2,217
Energy XLE+12.9%+10.2%+0.7%53%25.2%2,217
Health Care XLV+12.8%+8.5%+0.7%51%14.8%2,217
Utilities XLU+12.5%+5.4%+0.3%54%16.1%2,217
Financials XLF+11.1%+7.8%-1.1%51%23.3%2,217
Consumer Staples XLP+8.5%+5.3%-3.7%52%12.9%2,217
Consumer Discretionary XLY+8%+10.4%-4.2%52%20.2%2,217
Materials XLB+7.4%+8.5%-4.8%52%20.6%2,217
Real Estate XLREsince 2015+5.6%+5%-9.8%52%18.4%892

Context

AssetIn this regimeAll daysvs S&P 500Up sessionsVolatilitySessions
S&P 500 SPY+14.9%+10.2%—54%15.8%2,417
Nasdaq 100 QQQsince 1999+17.3%+13.4%+4.6%56%24.1%2,211
Russell 2000 IWMsince 2000+14.4%+9.8%+1.5%54%21%2,189
Long Treasuries TLTsince 2002-1.6%+1%-15.3%50%12.5%2,015
Gold GLDsince 2004+8.7%+11.7%-4.6%53%16.9%1,857

How this regime is defined

Real interest rates reads Zero bound 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 real yields were zero bound?
Information Technology +16.9%, Industrials +13%, Energy +12.9%. Annualised mean next-session returns since Dec 22, 1998; the S&P 500 returned +14.9%.
How common is this regime, and how long does it last?
It appears on 25.6% of trading days since 1983, in 274 separate episodes. The typical run is 7 sessions; the longest lasted 66 sessions.
Is this regime in force today?
No. It was last seen May 27, 2026 – Jul 2, 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.