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CVX 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 2024-11-08 to 2026-11-06.

Two paired wheel simulations on CVX, one managed at 21 DTE. On this simulation the 21-Day Rule finished -14.7 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 return23.1%8.5%-14.7 pp
Annualized return11.0%4.2%-6.8 pp
Buy-and-hold return35.5%35.5%0.0 pp
Max drawdown (from peak equity)14.1%18.5%+4.3 pp
Assignment rate33.3%23.5%-9.8 pp
Call-away rate80.0%57.1%-22.9 pp
Average cycle return1.9%0.2%—
Sample cycles1234—
History days728728—
Entry fills1748—
Entry fills priced from real option bars47%50%—
21-DTE buy-backs priced from real option bars—50%—

How CVX compares

Across the 37 published tickers, the 21-Day Rule finished ahead of holding to expiry on 21 and behind on 16. The CVX total-return delta of -14.7 pp ranks 32nd of 37 (1st is where managing early helped most); the median delta is +2.0 pp.

Without the rule, the standard arm returned 23.1% against 35.5% for buy-and-hold, so the plain wheel trailed holding the shares by 12.3 percentage points in this simulation.

Among its energy peers COP and XOM, the rule finished ahead of holding to expiry on 0 of 2; CVX itself came in at -14.7 pp.

The separate 10 DTE / 2% OTM wheel snapshot for CVX shows a put assignment rate of 24.3% and wheel P&L of $2,600 against $5,568 for buy-and-hold. That is a different recipe from the 35 DTE study on this page, so the two results are not additive.

MetricCVXFamily medianRank (highest first unless noted)
Rule total-return delta-14.7 pp+2.0 pp32nd of 37
Rule drawdown delta+4.3 pp-0.6 pp36th of 37 (lowest first)
21-Day total return8.5%16.0%30th of 37
21-Day annualized return4.2%7.7%30th of 37
Standard total return23.1%15.0%13th of 37
21-Day max drawdown18.5%19.0%17th of 37 (lowest first)
21-Day call-away rate57.1%42.1%3rd of 37
Standard annualized return11.0%7.2%13th of 37
Buy-and-hold return35.5%26.4%17th of 37
Standard max drawdown14.1%20.8%10th of 37 (lowest first)
Standard assignment rate33.3%36.4%20th of 37
21-Day assignment rate23.5%31.8%27th of 37
21-Day sample cycles34287th of 37
21-Day average cycle return0.2%0.6%31st of 37
TickerStandard return21-Day returnRule deltaBuy-and-holdStandard drawdown21-Day drawdownStandard assignment21-Day assignment
CVX23.1%8.5%-14.7 pp35.5%14.1%18.5%33.3%23.5%
COP15.0%14.8%-0.1 pp22.1%20.5%15.6%27.3%54.2%
XOM38.2%18.7%-19.4 pp37.0%15.2%12.0%60.0%30.0%

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

CVX buy-and-hold path

Month-end P&L of holding 100 CVX 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 2026-10 ($3,131) and the worst was 2025-04 (−$3,123).

MonthBuy-and-hold P&LChange in monthRunning highBelow its peakWorst fall so far
2024-11$500—$560$60$220
2024-12−$1,209−$1,709$560$1,769$2,138
2025-01−$774$435$560$1,334$2,138
2025-02$169$943$560$391$2,138
2025-03$1,036$867$1,104$68$2,138
2025-04−$2,087−$3,123$1,158$3,245$3,478
2025-05−$2,023$64$1,158$3,181$3,478
2025-06−$1,374$649$1,158$2,532$3,478
2025-07−$529$845$1,158$1,687$3,478
2025-08$367$896$1,158$791$3,478
2025-09−$164−$531$1,158$1,322$3,478
2025-10$79$243$1,158$1,079$3,478
2025-11−$580−$659$1,158$1,738$3,478
2025-12−$452$128$1,158$1,610$3,478
2026-01$1,997$2,449$1,997$0$3,478
2026-02$2,983$986$2,983$0$3,478
2026-03$4,997$2,014$5,422$425$3,478
2026-04$3,638−$1,359$5,422$1,784$3,478
2026-05$2,553−$1,085$5,422$2,869$3,478
2026-06$883−$1,670$5,422$4,539$4,539
2026-07$3,990$3,107$5,422$1,432$4,546
2026-08$4,921$931$5,422$501$4,546
2026-09$4,728−$193$6,084$1,356$4,546
2026-10$7,859$3,131$7,859$0$4,546
2026-11$5,568−$2,291$7,859$2,291$4,546
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 2024-11-08 to 2026-11-06, refreshed 2026-11-08.

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 47% (standard) and 50% (21-Day) of entry fills and 50% 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 CVX?

On this simulation the 21-Day Rule finished -14.7 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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