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HYG 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 HYG, one managed at 21 DTE. On this simulation the 21-Day Rule finished +0.9 pp ahead of holding to expiry.

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Arm-by-arm comparison

MetricStandard (hold to expiry)21-Day RuleDelta
Total return0.5%1.4%+0.9 pp
Annualized return0.3%0.7%+0.5 pp
Buy-and-hold return-3.2%-3.2%0.0 pp
Max drawdown (from peak equity)3.9%4.1%+0.2 pp
Assignment rate7.1%11.4%+4.3 pp
Call-away rate0.0%30.0%+30.0 pp
Average cycle return0.0%0.0%—
Sample cycles1435—
History days728728—
Entry fills1845—
Entry fills priced from real option bars44%42%—
21-DTE buy-backs priced from real option bars—40%—

How HYG compares

Across the 37 published tickers, the 21-Day Rule finished ahead of holding to expiry on 21 and behind on 16. The HYG total-return delta of +0.9 pp ranks 20th of 37 (1st is where managing early helped most); the median delta is +2.0 pp.

Without the rule, the standard arm returned 0.5% against -3.2% for buy-and-hold, so the plain wheel beat holding the shares by 3.7 percentage points in this simulation.

Among its defensive, healthcare and income peers COST, KO, PG and WMT, the rule finished ahead of holding to expiry on 2 of 4; HYG itself came in at +0.9 pp.

The separate 10 DTE / 2% OTM wheel snapshot for HYG shows a put assignment rate of 12.1% and wheel P&L of $382 against −$257 for buy-and-hold. That is a different recipe from the 35 DTE study on this page, so the two results are not additive.

MetricHYGFamily medianRank (highest first unless noted)
Rule total-return delta+0.9 pp+2.0 pp20th of 37
Rule drawdown delta+0.2 pp-0.6 pp22nd of 37 (lowest first)
21-Day total return1.4%16.0%32nd of 37
21-Day annualized return0.7%7.7%32nd of 37
Standard total return0.5%15.0%31st of 37
21-Day max drawdown4.1%19.0%1st of 37 (lowest first)
21-Day call-away rate30.0%42.1%29th of 37
Standard annualized return0.3%7.2%31st of 37
Buy-and-hold return-3.2%26.4%34th of 37
Standard max drawdown3.9%20.8%1st of 37 (lowest first)
Standard assignment rate7.1%36.4%37th of 37
21-Day assignment rate11.4%31.8%34th of 37
21-Day sample cycles35285th of 37
21-Day average cycle return0.0%0.6%32nd of 37
TickerStandard return21-Day returnRule deltaBuy-and-holdStandard drawdown21-Day drawdownStandard assignment21-Day assignment
HYG0.5%1.4%+0.9 pp-3.2%3.9%4.1%7.1%11.4%
COST16.5%20.4%+4.0 pp11.6%14.1%14.9%57.1%31.8%
KO28.9%26.1%-2.8 pp49.7%11.2%7.5%28.6%26.9%
PG9.0%17.3%+8.3 pp-1.4%12.4%8.6%75.0%42.1%
WMT35.0%10.2%-24.8 pp48.0%16.2%18.3%30.0%35.7%

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

HYG buy-and-hold path

Month-end P&L of holding 100 HYG 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 2025-06 ($108) and the worst was 2026-09 (−$260).

MonthBuy-and-hold P&LChange in monthRunning highBelow its peakWorst fall so far
2024-11$24—$24$0$57
2024-12−$115−$139$24$139$195
2025-01−$8$107$24$32$195
2025-02$33$41$33$0$195
2025-03−$91−$124$33$124$195
2025-04−$120−$29$33$153$438
2025-05−$23$97$33$56$438
2025-06$85$108$85$0$438
2025-07$58−$27$85$27$438
2025-08$106$48$121$15$438
2025-09$139$33$152$13$438
2025-10$100−$39$152$52$438
2025-11$119$19$152$33$438
2025-12$83−$36$152$69$438
2026-01$132$49$152$20$438
2026-02$92−$40$152$60$438
2026-03−$24−$116$152$176$438
2026-04$58$82$152$94$438
2026-05$51−$7$152$101$438
2026-06$17−$34$152$135$438
2026-07−$32−$49$152$184$438
2026-08$1$33$152$151$438
2026-09−$259−$260$152$411$438
2026-10−$237$22$152$389$451
2026-11−$257−$20$152$409$451
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 44% (standard) and 42% (21-Day) of entry fills and 40% 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 HYG?

On this simulation the 21-Day Rule finished +0.9 pp ahead of holding to expiry.

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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