# SPX Settlement Dates: AM and PM Rules

Source: SquawkFlow
URL: https://squawkflow.com/calendar/spx-settlement-dates
Verified on: 2026-09-01

> How standard SPX options settle to the opening print, why they stop trading the day before, and how SPXW weeklys differ, quoted from the Cboe contract specifications.

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### Expiration date, standard SPX

> The third Friday of the expiration month.

Source: https://www.cboe.com/tradable_products/sp_500/spx_options/specifications/ (verified 2026-09-01)

### Last trading day, standard SPX

> Trading in SPX options will ordinarily cease on the business day (usually a Thursday) preceding the day on which the exercise-settlement value (i.e., the expiration date) is calculated, 5:00 pm ET.

Source: https://www.cboe.com/tradable_products/sp_500/spx_options/specifications/ (verified 2026-09-01)

### Settlement value, standard SPX

> The exercise-settlement value, SET, is calculated using the opening sales price in the primary market of each component security on the expiration date.

Source: https://www.cboe.com/tradable_products/sp_500/spx_options/specifications/ (verified 2026-09-01)

### Last trading day, SPXW weeklys and end of month

> Trading in SPXW options will ordinarily cease on the day of expiration, 4:00 pm ET, and at 1:00 pm ET for any half day holiday.

Source: https://www.cboe.com/tradable_products/sp_500/spx_options/specifications/ (verified 2026-09-01)

### What triple witching means

> the simultaneous expiration of individual stock options, equity index options and equity index futures that occurs four times a year on third Fridays in March, June, September and December

Source: https://cdn.cboe.com/resources/spx/Settlement_of_Standard_AM_Settled_SP_500_Index_Options.pdf (verified 2026-09-01)

## 2026 standard SPX settlement dates

| Month | Settles on | Last trading day |
| --- | --- | --- |
| January 2026 | 2026-01-16 | 2026-01-15 |
| February 2026 | 2026-02-20 | 2026-02-19 |
| March 2026 | 2026-03-20 | 2026-03-19 |
| April 2026 | 2026-04-17 | 2026-04-16 |
| May 2026 | 2026-05-15 | 2026-05-14 |
| June 2026 | 2026-06-18 | 2026-06-17 |
| July 2026 | 2026-07-17 | 2026-07-16 |
| August 2026 | 2026-08-21 | 2026-08-20 |
| September 2026 | 2026-09-18 | 2026-09-17 |
| October 2026 | 2026-10-16 | 2026-10-15 |
| November 2026 | 2026-11-20 | 2026-11-19 |
| December 2026 | 2026-12-18 | 2026-12-17 |

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## Citation

Source: SquawkFlow, https://squawkflow.com/calendar/spx-settlement-dates
Retrieved: 2026-09-11T04:31:05.822Z
Dates verified against exchange sources on 2026-09-01.

Educational content, not financial advice.