Skip to main content
Track Option expiration analysis
18 / 23
Search the archiveLibrary
Library

2016issue C0924-25

Weekday option expirations as a catalyst-timing overlay

Listed equity options once clustered at a third-Friday close. Editorial view: Monday, Wednesday, and Friday weeklies can be mapped to the economic calendar so one catalyst trade sits inside a broader volatility-regime plan.

  • A standard-monthly-expiration once meant listed equity options ceased at the close on the third Friday of the contract month, with availability set by an expiration-cycle.
  • A weekly-option first meant a Friday expiration that was not that monthly contract, later offered several weeks forward and used for short-dated exposure around scheduled catalysts.
  • A weekday-weekly on the spxw root with pm-settlement can be opened on the preceding Thursday or Friday, reducing forced weekend holds for some short-horizon approaches.
  • Editorial view: map Monday, Wednesday, and Friday expirations to the economic calendar so one event-window trade sits inside a volatility-regime plan rather than defaulting to the third-Friday habit.
Entries in this reading1 entry
Current trackOption expiration analysis38 readings

The third-Friday default

Listed equity-option expirations were historically concentrated at the close on the third Friday of the contract month. That standard-monthly-expiration sat inside an expiration-cycle, which grouped contract months and once determined which expirations were available on a given underlying.

Until weekday listings arrived, a weekly-option meant a Friday expiration that was not the standard third-Friday monthly contract. Those Friday weeklies were later offered several weeks forward.

Friday weeklies and the event window

Friday-expiring weeklies were first listed on the S&P 500 and later extended to many stocks and exchange-traded funds. They grew into a sizable share of S&P 500 option volume.

S&P 500 weeklies listed on Thursdays and used an end-of-week-expiration, closing on Friday or at week's end. That structure gave short-dated exposure around scheduled catalysts such as earnings, policy decisions, employment releases, and other government reports. An event-window is the brief span around such a release during which a trader may prefer a weekly that ends just after the catalyst.

Weekday weeklies and when a position can open

Wednesday-expiring S&P 500 weeklies began trading after Friday weeklies were already listed. They typically covered consecutive weeks and could extend further forward.

Wednesday weeklies used the spxw root and pm-settlement, matching the planned Monday-expiring S&P 500 weeklies under the same root. A weekday-weekly expires on Monday or Wednesday and changes when a short-dated position can be opened and closed.

Monday and Wednesday expirations let a weekly be opened on the preceding Thursday or Friday rather than only early in a Friday-expiration week. That reduced forced weekend holds for some short-horizon approaches.

Educational research material, not investment advice. Historical source context does not establish present-day performance.
18 of 23 in the Option expiration analysis track
201732-38 pp.Next on Option expiration analysisOverlapping condors and expiration windowsOverlapping condors, Christmas-tree spreads, and short-term calendar spreads were used as one options-centered procedure rather than as isolated directional bets.
All readings on this track · 23 readings
  1. 1994Selecting option expiration and strike by expected value
  2. 1994Evaluating DJIA weakness inside the quarterly futures cycle
  3. 1995Evaluating option-expiration weeks as index regimes
  4. 2004Index option execution through expiration and volatility context
  5. 2005Constructing credit spreads around settlement and implied volatility
  6. 2006Call credit spread execution, leftover premium and expiration decay
  7. 2006Expiration-aware call construction and automatic exercise
  8. 2007Expiration, leftover premium, and seasonal context for option construction
  9. 2007Seven option mistakes in premium, expiration, and implied volatility
  10. 2008Long straddle construction around implied volatility and expiration
  11. 2008Option income critiqued through volatility and expiration
  12. 2011Covered call writing as income holding or buy-write turnover
  13. 2011A five-day Treasury bond option sale as a market-regime choice
  14. 2011Session-access gaps, expiration exercise, and spread coverage
  15. 2011Weekly option tenor construction and premium drivers
  16. 2012PM-settled index expiration in a defensive sector regime
  17. 2014Weekly covered-call income and the expiration hold test
  18. 2016Weekday option expirations as a catalyst-timing overlay
  19. 2017Overlapping condors and expiration windows
  20. 2017Small-cap index futures listing change as a margin and options checkpoint
  21. 2017Pin risk as an expiration-day execution problem
  22. 2019Stock, index, and futures options as a capital and expiration filter
  23. 2020Dividend early assignment risk for short calls
By fieldOptions and volatility435 readingsBy year2016134 readings
All 38 readings tagged Option expiration analysis
Also on Option expiration analysis5 readings
1985Exchange controls that close the trading-window1993Thursday's last S&P 500 print is not the Friday settlement1994Evaluating DJIA weakness inside the quarterly futures cycle1994Selecting option expiration and strike by expected value1995Evaluating option-expiration weeks as index regimes