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AAPL 21-Day Rule research

Public recipe: cash-secured wheel sized to equity, 35 DTE / 2% OTM puts and calls, manage at 21 DTE. Simulated window 2024-10-25 to 2026-10-23.

Two paired wheel simulations on AAPL, one managed at 21 DTE. On this simulation the 21-Day Rule finished -7.5 pp behind holding to expiry — managing early hurt here.

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Arm-by-arm comparison

MetricStandard (hold to expiry)21-Day RuleDelta
Total return26.5%19.1%-7.5 pp
Annualized return12.5%9.1%-3.4 pp
Buy-and-hold return50.3%50.3%0.0 pp
Max drawdown (from peak equity)26.7%15.0%-11.7 pp
Assignment rate27.3%32.3%+5.0 pp
Call-away rate42.9%58.8%+15.9 pp
Average cycle return2.4%0.6%—
Sample cycles1131—
History days728728—
Entry fills1848—
Entry fills priced from real option bars50%50%—
21-DTE buy-backs priced from real option bars—52%—

How AAPL compares

Across the 37 published tickers, the 21-Day Rule finished ahead of holding to expiry on 16 and behind on 21. The AAPL total-return delta of -7.5 pp ranks 29th of 37 (1st is where managing early helped most); the median delta is -0.4 pp.

Without the rule, the standard arm returned 26.5% against 50.3% for buy-and-hold, so the plain wheel trailed holding the shares by 23.7 percentage points in this simulation.

Among its mega-cap tech and semiconductor peers AMZN, GOOGL, MSFT and NVDA, the rule finished ahead of holding to expiry on 1 of 4; AAPL itself came in at -7.5 pp.

The separate 10 DTE / 2% OTM wheel snapshot for AAPL shows a put assignment rate of 30.0% and wheel P&L of $1,884 against $11,631 for buy-and-hold. That is a different recipe from the 35 DTE study on this page, so the two results are not additive.

MetricAAPLFamily medianRank (highest first unless noted)
Rule total-return delta-7.5 pp-0.4 pp29th of 37
Rule drawdown delta-11.7 pp-1.7 pp3rd of 37 (lowest first)
21-Day total return19.1%16.8%15th of 37
21-Day annualized return9.1%8.1%15th of 37
Standard total return26.5%19.6%10th of 37
21-Day max drawdown15.0%19.0%11th of 37 (lowest first)
21-Day call-away rate58.8%42.1%2nd of 37
Standard annualized return12.5%9.4%10th of 37
Buy-and-hold return50.3%42.2%12th of 37
Standard max drawdown26.7%20.2%24th of 37 (lowest first)
Standard assignment rate27.3%33.3%24th of 37
21-Day assignment rate32.3%31.0%17th of 37
21-Day sample cycles312810th of 37
21-Day average cycle return0.6%0.6%19th of 37
TickerStandard return21-Day returnRule deltaBuy-and-holdStandard drawdown21-Day drawdownStandard assignment21-Day assignment
AAPL26.5%19.1%-7.5 pp50.3%26.7%15.0%27.3%32.3%
AMZN26.4%12.2%-14.3 pp32.0%22.5%23.7%45.5%31.0%
GOOGL30.8%26.8%-4.0 pp93.7%18.4%19.8%25.0%34.5%
MSFT15.1%19.3%+4.2 pp22.5%21.9%19.0%27.3%27.3%
NVDA61.0%39.4%-21.6 pp49.0%28.7%28.9%23.1%37.0%

AAPL wheel snapshot — the other published study on this ticker.

AAPL buy-and-hold path

Month-end P&L of holding 100 AAPL shares over the same window as this study, taken from the stored series of the 10 DTE wheel snapshot. The best month for holders was 2026-05 ($4,071) and the worst was 2026-06 (−$2,270).

MonthBuy-and-hold P&LChange in monthRunning highBelow its peakWorst fall so far
2024-10−$550—$226$776$776
2024-11$592$1,142$592$0$1,166
2024-12$1,901$1,309$2,761$860$1,166
2025-01$459−$1,442$2,761$2,302$3,638
2025-02$1,043$584$2,761$1,718$3,638
2025-03−$928−$1,971$2,761$3,689$4,934
2025-04−$1,891−$963$2,761$4,652$8,660
2025-05−$3,056−$1,165$2,761$5,817$8,660
2025-06−$2,624$432$2,761$5,385$8,660
2025-07−$2,384$240$2,761$5,145$8,660
2025-08$73$2,457$2,761$2,688$8,660
2025-09$2,322$2,249$2,761$439$8,660
2025-10$3,896$1,574$3,999$103$8,660
2025-11$4,744$848$4,744$0$8,660
2025-12$4,045−$699$5,478$1,433$8,660
2026-01$2,807−$1,238$5,478$2,671$8,660
2026-02$3,277$470$5,478$2,201$8,660
2026-03$2,238−$1,039$5,478$3,240$8,660
2026-04$3,994$1,756$5,478$1,484$8,660
2026-05$8,065$4,071$8,110$45$8,660
2026-06$5,795−$2,270$8,379$2,584$8,660
2026-07$7,750$1,955$10,867$3,117$8,660
2026-08$8,544$794$10,867$2,323$8,660
2026-09$10,161$1,617$10,966$805$8,660
2026-10$11,631$1,470$11,681$50$8,660
Problem

A single ticker result is context, not a verdict

One ticker and one window prove nothing general; the rule arm sometimes cannot exit at 21 DTE

Solution

What this paired simulation produced

Window and freshness

Period 2024-10-25 to 2026-10-23, refreshed 2026-10-25.

Limitations

Premiums may include model fills (BSM/IV) when market quotes were missing.
  • Simulated results of one fixed recipe over one historical window; not collected income and not a prediction.
  • The rule arm could not exit at 21 DTE on 0 short options and held those to expiry.
  • Modelled pricing: real option bars priced 50% (standard) and 50% (21-Day) of entry fills and 52% of 21 DTE buy-backs; the rest used implied or realized volatility where market quotes were missing.

Frequently Asked Questions

Everything you need to know about getting started

Did the 21-Day Rule help on AAPL?

On this simulation the 21-Day Rule finished -7.5 pp behind holding to expiry — managing early hurt here.

What recipe was simulated?

Same wheel, but the 21-Day arm buys each short option back at 21 DTE; an in-the-money put then takes the shares at that day's close and an in-the-money call delivers them.

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