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JPM 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 JPM, one managed at 21 DTE. On this simulation the 21-Day Rule finished -4.1 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 return28.0%23.9%-4.1 pp
Annualized return13.2%11.3%-1.8 pp
Buy-and-hold return49.2%49.2%0.0 pp
Max drawdown (from peak equity)28.1%15.3%-12.8 pp
Assignment rate20.0%19.4%-0.6 pp
Call-away rate100.0%50.0%-50.0 pp
Average cycle return1.9%0.7%—
Sample cycles1536—
History days728728—
Entry fills1848—
Entry fills priced from real option bars50%50%—
21-DTE buy-backs priced from real option bars—52%—

How JPM compares

Across the 37 published tickers, the 21-Day Rule finished ahead of holding to expiry on 16 and behind on 21. The JPM total-return delta of -4.1 pp ranks 24th of 37 (1st is where managing early helped most); the median delta is -0.4 pp.

Without the rule, the standard arm returned 28.0% against 49.2% for buy-and-hold, so the plain wheel trailed holding the shares by 21.2 percentage points in this simulation.

Among its financials peers BAC and XLF, the rule finished ahead of holding to expiry on 0 of 2; JPM itself came in at -4.1 pp.

The separate 10 DTE / 2% OTM wheel snapshot for JPM shows a put assignment rate of 20.0% and wheel P&L of $8,558 against $10,927 for buy-and-hold. That is a different recipe from the 35 DTE study on this page, so the two results are not additive.

MetricJPMFamily medianRank (highest first unless noted)
Rule total-return delta-4.1 pp-0.4 pp24th of 37
Rule drawdown delta-12.8 pp-1.7 pp2nd of 37 (lowest first)
21-Day total return23.9%16.8%10th of 37
21-Day annualized return11.3%8.1%10th of 37
Standard total return28.0%19.6%9th of 37
21-Day max drawdown15.3%19.0%12th of 37 (lowest first)
21-Day call-away rate50.0%42.1%8th of 37
Standard annualized return13.2%9.4%9th of 37
Buy-and-hold return49.2%42.2%13th of 37
Standard max drawdown28.1%20.2%26th of 37 (lowest first)
Standard assignment rate20.0%33.3%33rd of 37
21-Day assignment rate19.4%31.0%29th of 37
21-Day sample cycles36283rd of 37
21-Day average cycle return0.7%0.6%16th of 37
TickerStandard return21-Day returnRule deltaBuy-and-holdStandard drawdown21-Day drawdownStandard assignment21-Day assignment
JPM28.0%23.9%-4.1 pp49.2%28.1%15.3%20.0%19.4%
BAC4.5%-1.0%-5.5 pp20.7%24.0%20.0%38.5%32.1%
XLF22.6%16.8%-5.9 pp19.9%15.8%10.3%40.0%33.3%

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

JPM buy-and-hold path

Month-end P&L of holding 100 JPM 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 2026-06 ($2,802) and the worst was 2026-09 (−$2,519).

MonthBuy-and-hold P&LChange in monthRunning highBelow its peakWorst fall so far
2024-10−$39—$319$358$358
2024-11$2,741$2,780$2,798$57$1,068
2024-12$1,740−$1,001$2,798$1,058$1,992
2025-01$4,499$2,759$4,592$93$1,992
2025-02$4,234−$265$5,764$1,530$2,255
2025-03$2,299−$1,935$5,764$3,465$5,476
2025-04$2,231−$68$5,764$3,533$6,967
2025-05$4,169$1,938$5,764$1,595$6,967
2025-06$6,760$2,591$6,760$0$6,967
2025-07$7,393$633$7,732$339$6,967
2025-08$7,911$518$7,911$0$6,967
2025-09$9,312$1,401$9,375$63$6,967
2025-10$8,881−$431$9,375$494$6,967
2025-11$9,077$196$9,810$733$6,967
2025-12$9,991$914$10,686$695$6,967
2026-01$8,358−$1,633$11,230$2,872$6,967
2026-02$7,799−$559$11,230$3,431$6,967
2026-03$7,185−$614$11,230$4,045$6,967
2026-04$9,092$1,907$11,230$2,138$6,967
2026-05$7,700−$1,392$11,230$3,530$6,967
2026-06$10,502$2,802$11,281$779$6,967
2026-07$12,948$2,446$13,500$552$6,967
2026-08$13,371$423$14,287$916$6,967
2026-09$10,852−$2,519$14,287$3,435$6,967
2026-10$10,927$75$14,287$3,360$6,967
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 JPM?

On this simulation the 21-Day Rule finished -4.1 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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