2019issue C0310-13
Weekly covered-call writing as a two-book credit-spread case
This archive case works a weekly expiration cycle that sells an at-the-money call and buys a higher same-week call against a long stock lot. Editorial reading: keep the option book on a one-week clock and the stock lot open, so assignment, carry, and the next strike roll can be scored as one procedure rather than as a leftover quarterly sale.
- Earlier covered-call writing rewrote a short call on a quarterly and then a monthly calendar. Weekly listings made a one-week rewrite cycle available.
- The overlay sells an at-the-money short leg and buys a higher same-week call no more than 15 points above it, forming a call credit spread against the long stock lot.
- Worked outcomes close the option legs on expiration Friday and leave the stock open, so weekly value mixes realized option cash with an unrealized stock mark.
- After Friday, an unchanged 320 close rewrites 320/335, a move to 325 rewrites 325/340, and a move to 335 rewrites 335/350.
From quarterly and monthly rewrites to a weekly clock
Earlier covered-call writing rewrote a short call on a quarterly calendar and then on a monthly calendar. Later weekly listings made a one-week rewrite cycle available. The archive case uses that weekly expiration cycle. The option overlay is opened, marked to Friday settlement, and then rewritten.
The overlay is a call credit spread
The overlay sells an at-the-money call and buys a higher same-week call against a long stock lot. The pair forms a call credit spread instead of a single covered short call. The long call is specified as no more than 15 points above the at-the-money short strike. The at-the-money short leg sits at the strike nearest the stock print.
Worked 320/335 snapshot
In the worked chain the pair is 320 and 335. With the underlying at 320.87, the 320 call is about 11.60 and the 335 call is 5.70, so the 320/335 spread posts a 5.90 credit.
Six Friday paths and split books
Each weekly expiration is scored on six paths: unchanged, small advance, advance, large advance, small decline, and large decline. Worked outcomes close the option legs on the weekly expiration Friday and leave the stock open. Weekly value mixes realized option cash with an unrealized stock mark. That is split P&L books: option cash is booked as realized at weekly expiration, while the stock remains open and is marked as unrealized.
The next strike roll
An unchanged 320 close rewrites 320/335. A move to 325 rewrites 325/340. A move to 335 rewrites 335/350. The strike roll replaces the expired spread with a new pair whose short strike follows the latest stock print.
Selection rule in the case
The selection rule requires liquid weekly listings and a near-term upward bias in the underlying.
All readings on this track · 25 readings
- 1995Sequenced covered-call repair after a growth-stock drawdown
- 1996Covered-call writing as income and assignment discipline
- 1997Relative volatility rank for covered-call overlays
- 1997Covered call time, probability, and implied volatility
- 1999Covered-call income when implied volatility is cheap
- 2000Covered-call income and assignment flexibility
- 2002Covered-call expiration rate versus expected value
- 2003Covered-call versus diagonal housing after a single-name drawdown
- 2003Covered-call overlay on a stock portfolio as a payoff case study
- 2003Ratio backspread and covered-call assignment construction
- 2004Covered-call income is not a safety net
- 2006Evaluating consecutive covered calls across market regimes
- 2007A job-first audit of commodity options in a futures book
- 2011Horizon checks on Covered call writing, the risk-reward ratio, and the Relative Strength Index
- 2012From ex-date verticals to leftover buy-writes, and a call backspread that stays net long
- 2013Year-long covered calls on high-yield industrials
- 2014Year-horizon covered calls on Dow yield ranks
- 2014Covered-call premium as a cost-basis cushion
- 2014Monthly buy-write construction with traffic-light exits
- 2017Low-volatility covered calls need a real premium buffer
- 2017Covered-call futures income as one testable procedure
- 2018Partial covered-call overlays at targets, resistance, and rich volatility
- 2019Weekly covered-call writing as a two-book credit-spread case
- 2019Weekly option income as one holding-period case
- 2019Locking long-call profit with a temporary overlay