2026 Market Catalyst Calendar
Every pre-scheduled date that moves US stocks this year — all 8 FOMC decisions, every monthly and quad-witching expiry, all 24 short-interest publication dates, and every market holiday and 1 pm early close. 60 dated events, each one linked to the primary source it came from. Free, no signup.
📅 Download the .ics (add to Google/Apple Calendar) JSON
The .ics imports all 60 events as all-day entries with the source URL in the description. CC BY 4.0 — reuse it, just credit this page.
What is left in 2026 (25 events)
| Date | ET | Type | Event | Src |
|---|---|---|---|---|
| Fri 21 Aug | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Tue 25 Aug | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-08-14 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Mon 7 Sep | closed | Session | Market closed — Labor Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Thu 10 Sep | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-08-31 settlement date. The number you read is already 10 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Wed 16 Sep | 14:00 | FOMC | FOMC rate decision + dot plot Two-day meeting 2026-09-15 to 2026-09-16. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. Summary of Economic Projections (the dot plot) is released with this decision — historically the higher-volatility half of the eight. | source |
| Fri 18 Sep | 16:00 | Expiry | Quadruple witching derived Stock-index futures, index options, single-stock options and single-stock futures all expire the same day. Volume concentrates into the close; the largest scheduled non-news volume day of the quarter. DERIVED from the standard third-Friday expiration rule, not quoted from a calendar page. | source |
| Fri 18 Sep | 16:00 | Index | S&P index quarterly rebalance takes effect derived S&P Dow Jones Indices runs its quarterly share/float rebalance effective at this quarterly rebalancing date, which is why quad witching closes are so heavy — index funds must trade the print. DERIVED from published methodology; confirm the exact effective date against the index's own rebalance announcement. | source |
| Thu 24 Sep | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-09-15 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 9 Oct | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-09-30 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 16 Oct | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Mon 26 Oct | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-10-15 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Wed 28 Oct | 14:00 | FOMC | FOMC rate decision Two-day meeting 2026-10-27 to 2026-10-28. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. | source |
| Tue 10 Nov | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-10-30 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 20 Nov | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Tue 24 Nov | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-11-13 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Thu 26 Nov | closed | Session | Market closed — Thanksgiving Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Fri 27 Nov | 13:00 | Session | Early close 1:00 pm ET — Day after Thanksgiving US equity markets close at 1:00 pm ET. Thin books, wide spreads, and an unusually large share of the day's news arrives after the close. | source |
| Wed 9 Dec | 14:00 | FOMC | FOMC rate decision + dot plot Two-day meeting 2026-12-08 to 2026-12-09. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. Summary of Economic Projections (the dot plot) is released with this decision — historically the higher-volatility half of the eight. | source |
| Wed 9 Dec | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-11-30 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 18 Dec | 16:00 | Expiry | Quadruple witching derived Stock-index futures, index options, single-stock options and single-stock futures all expire the same day. Volume concentrates into the close; the largest scheduled non-news volume day of the quarter. DERIVED from the standard third-Friday expiration rule, not quoted from a calendar page. | source |
| Fri 18 Dec | 16:00 | Index | S&P index quarterly rebalance takes effect derived S&P Dow Jones Indices runs its quarterly share/float rebalance effective at this quarterly rebalancing date, which is why quad witching closes are so heavy — index funds must trade the print. DERIVED from published methodology; confirm the exact effective date against the index's own rebalance announcement. | source |
| Thu 24 Dec | 13:00 | Session | Early close 1:00 pm ET — Christmas Eve US equity markets close at 1:00 pm ET. Thin books, wide spreads, and an unusually large share of the day's news arrives after the close. | source |
| Thu 24 Dec | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-12-15 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 25 Dec | closed | Session | Market closed — Christmas Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Tue 12 Jan | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-12-31 settlement date. The number you read is already 12 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
The calendar is only half the tape
Everything above is knowable weeks in advance, which is exactly why none of it is an edge on its own — the whole market has the same list. The moves that actually reprice a single stock are the ones with no date attached: an 8-K at 4:03 pm, a guidance cut, an FDA letter, a halt, a deal leak, a downgrade hitting the wire before it hits your app.
That half needs a feed rather than a calendar. Top Tier Newswire aggregates 40+ sources into one tape with sub-2-second latency, sentiment tagging and per-ticker watchlists — free tier for delayed access, Pro for real-time. Pair it with this calendar: the calendar tells you which days to be flat or hedged, the feed tells you what just happened.
FOMC decisions — all 8 in 2026
Statement at 2:00 pm ET, press conference at 2:30 pm ET. Four of the eight carry the Summary of Economic Projections; those are the ones where the reaction most often extends into the following session rather than fading by the close.
| Date | ET | Type | Event | Src |
|---|---|---|---|---|
| Wed 28 Jan | 14:00 | FOMC | FOMC rate decision Two-day meeting 2026-01-27 to 2026-01-28. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. | source |
| Wed 18 Mar | 14:00 | FOMC | FOMC rate decision + dot plot Two-day meeting 2026-03-17 to 2026-03-18. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. Summary of Economic Projections (the dot plot) is released with this decision — historically the higher-volatility half of the eight. | source |
| Wed 29 Apr | 14:00 | FOMC | FOMC rate decision Two-day meeting 2026-04-28 to 2026-04-29. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. | source |
| Wed 17 Jun | 14:00 | FOMC | FOMC rate decision + dot plot Two-day meeting 2026-06-16 to 2026-06-17. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. Summary of Economic Projections (the dot plot) is released with this decision — historically the higher-volatility half of the eight. | source |
| Wed 29 Jul | 14:00 | FOMC | FOMC rate decision Two-day meeting 2026-07-28 to 2026-07-29. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. | source |
| Wed 16 Sep | 14:00 | FOMC | FOMC rate decision + dot plot Two-day meeting 2026-09-15 to 2026-09-16. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. Summary of Economic Projections (the dot plot) is released with this decision — historically the higher-volatility half of the eight. | source |
| Wed 28 Oct | 14:00 | FOMC | FOMC rate decision Two-day meeting 2026-10-27 to 2026-10-28. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. | source |
| Wed 9 Dec | 14:00 | FOMC | FOMC rate decision + dot plot Two-day meeting 2026-12-08 to 2026-12-09. Statement 2:00 pm ET, Chair press conference 2:30 pm ET. Summary of Economic Projections (the dot plot) is released with this decision — historically the higher-volatility half of the eight. | source |
Option expiries and index rebalances
Monthly OPEX is the third Friday of every month. When that Friday falls in March, June, September or December it is quadruple witching — index futures, index options, single-stock options and single-stock futures all expire at once, and the S&P quarterly rebalance goes effective around the same print, which is why the closing auction on those days is the heaviest scheduled volume event of the quarter.
Honesty note: these rows are derived from the published third-Friday rule, not copied from an exchange calendar page. The rule has held for decades but always confirm against the exchange calendar before trading a specific expiry.
| Date | ET | Type | Event | Src |
|---|---|---|---|---|
| Fri 16 Jan | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 20 Feb | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 20 Mar | 16:00 | Expiry | Quadruple witching derived Stock-index futures, index options, single-stock options and single-stock futures all expire the same day. Volume concentrates into the close; the largest scheduled non-news volume day of the quarter. DERIVED from the standard third-Friday expiration rule, not quoted from a calendar page. | source |
| Fri 20 Mar | 16:00 | Index | S&P index quarterly rebalance takes effect derived S&P Dow Jones Indices runs its quarterly share/float rebalance effective at this quarterly rebalancing date, which is why quad witching closes are so heavy — index funds must trade the print. DERIVED from published methodology; confirm the exact effective date against the index's own rebalance announcement. | source |
| Fri 17 Apr | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 15 May | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 19 Jun | 16:00 | Expiry | Quadruple witching derived Stock-index futures, index options, single-stock options and single-stock futures all expire the same day. Volume concentrates into the close; the largest scheduled non-news volume day of the quarter. DERIVED from the standard third-Friday expiration rule, not quoted from a calendar page. | source |
| Fri 19 Jun | 16:00 | Index | S&P index quarterly rebalance takes effect derived S&P Dow Jones Indices runs its quarterly share/float rebalance effective at this quarterly rebalancing date, which is why quad witching closes are so heavy — index funds must trade the print. DERIVED from published methodology; confirm the exact effective date against the index's own rebalance announcement. | source |
| Fri 17 Jul | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 21 Aug | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 18 Sep | 16:00 | Expiry | Quadruple witching derived Stock-index futures, index options, single-stock options and single-stock futures all expire the same day. Volume concentrates into the close; the largest scheduled non-news volume day of the quarter. DERIVED from the standard third-Friday expiration rule, not quoted from a calendar page. | source |
| Fri 18 Sep | 16:00 | Index | S&P index quarterly rebalance takes effect derived S&P Dow Jones Indices runs its quarterly share/float rebalance effective at this quarterly rebalancing date, which is why quad witching closes are so heavy — index funds must trade the print. DERIVED from published methodology; confirm the exact effective date against the index's own rebalance announcement. | source |
| Fri 16 Oct | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 20 Nov | 16:00 | Expiry | Monthly option expiration (OPEX) derived Standard monthly equity and index options expire. Pinning and elevated closing volume are normal. DERIVED from the standard third-Friday expiration rule. | source |
| Fri 18 Dec | 16:00 | Expiry | Quadruple witching derived Stock-index futures, index options, single-stock options and single-stock futures all expire the same day. Volume concentrates into the close; the largest scheduled non-news volume day of the quarter. DERIVED from the standard third-Friday expiration rule, not quoted from a calendar page. | source |
| Fri 18 Dec | 16:00 | Index | S&P index quarterly rebalance takes effect derived S&P Dow Jones Indices runs its quarterly share/float rebalance effective at this quarterly rebalancing date, which is why quad witching closes are so heavy — index funds must trade the print. DERIVED from published methodology; confirm the exact effective date against the index's own rebalance announcement. | source |
Short interest publication dates — all 24
This is the table most retail traders have never seen, and it explains why squeeze narratives are usually built on stale data. FINRA collects positions as of a settlement date, firms report two business days later, and publication follows about a week after that. Every 2026 print is 8–12 calendar days behind the positioning it describes.
| Published | ET | Type | Event | Src |
|---|---|---|---|---|
| Tue 27 Jan | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-01-15 settlement date. The number you read is already 12 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 10 Feb | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-01-30 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Wed 25 Feb | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-02-13 settlement date. The number you read is already 12 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 10 Mar | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-02-27 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 24 Mar | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-03-13 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 10 Apr | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-03-31 settlement date. The number you read is already 10 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 24 Apr | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-04-15 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Mon 11 May | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-04-30 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Wed 27 May | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-05-15 settlement date. The number you read is already 12 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 9 Jun | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-05-29 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Thu 25 Jun | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-06-15 settlement date. The number you read is already 10 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 10 Jul | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-06-30 settlement date. The number you read is already 10 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 24 Jul | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-07-15 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 11 Aug | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-07-31 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 25 Aug | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-08-14 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Thu 10 Sep | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-08-31 settlement date. The number you read is already 10 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Thu 24 Sep | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-09-15 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Fri 9 Oct | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-09-30 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Mon 26 Oct | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-10-15 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 10 Nov | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-10-30 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 24 Nov | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-11-13 settlement date. The number you read is already 11 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Wed 9 Dec | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-11-30 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Thu 24 Dec | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-12-15 settlement date. The number you read is already 9 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
| Tue 12 Jan | — | Short interest | Short interest published FINRA/exchange publication of short interest as of the 2026-12-31 settlement date. The number you read is already 12 days stale on the day it prints — that lag is the single most misunderstood thing about squeeze setups. | source |
Market holidays and early closes
| Date | ET | Type | Event | Src |
|---|---|---|---|---|
| Thu 1 Jan | closed | Session | Market closed — New Year's Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Mon 19 Jan | closed | Session | Market closed — Martin Luther King, Jr. Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Mon 16 Feb | closed | Session | Market closed — Washington's Birthday NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Fri 3 Apr | closed | Session | Market closed — Good Friday NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Mon 25 May | closed | Session | Market closed — Memorial Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Fri 19 Jun | closed | Session | Market closed — Juneteenth NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Fri 3 Jul | 13:00 | Session | Early close 1:00 pm ET — Independence Day (observed) US equity markets close at 1:00 pm ET. Thin books, wide spreads, and an unusually large share of the day's news arrives after the close. | source |
| Mon 7 Sep | closed | Session | Market closed — Labor Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Thu 26 Nov | closed | Session | Market closed — Thanksgiving Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
| Fri 27 Nov | 13:00 | Session | Early close 1:00 pm ET — Day after Thanksgiving US equity markets close at 1:00 pm ET. Thin books, wide spreads, and an unusually large share of the day's news arrives after the close. | source |
| Thu 24 Dec | 13:00 | Session | Early close 1:00 pm ET — Christmas Eve US equity markets close at 1:00 pm ET. Thin books, wide spreads, and an unusually large share of the day's news arrives after the close. | source |
| Fri 25 Dec | closed | Session | Market closed — Christmas Day NYSE and Nasdaq closed for the full session. Note that news does not stop: filings, foreign markets and company releases still land, and they gap the open on the next session. | source |
FAQ
When is the next FOMC meeting in 2026?
The remaining 2026 FOMC decisions are 16 September, 28 October and 9 December. Each statement lands at 2:00 pm ET with the Chair's press conference at 2:30 pm ET. September and December also carry the Summary of Economic Projections (the dot plot), which is the higher-volatility half of the eight meetings.
What are the 2026 quadruple witching dates?
The third Fridays of March, June, September and December: 20 March, 19 June, 18 September and 18 December 2026. All four expire together — index futures, index options, single-stock options and single-stock futures — which is why closing volume concentrates so hard on those prints.
When is short interest published in 2026?
Twice a month, roughly eight business days after the settlement date it describes. The remaining 2026 publication dates are 25 August, 10 September, 24 September, 9 October, 26 October, 10 November, 24 November, 9 December and 24 December. The important part: the 25 August print describes 14 August positioning, so it is already 11 days old the moment you read it.
What days is the US stock market closed in 2026?
Nine full closures: 1 January, 19 January, 16 February, 3 April (Good Friday), 25 May, 19 June, 7 September, 26 November and 25 December. Three 1:00 pm ET early closes: 3 July, 27 November and 24 December.
Which scheduled events actually move stocks the most?
Ranked by how reliably they produce an index-level move: FOMC decision days (especially the four with projections), quad witching closes, and CPI/payrolls mornings. Single-stock movement is dominated by earnings and by unscheduled news — 8-Ks, guidance changes, halts, M&A — which by definition do not appear on any calendar.
Sources, and what is not here
- Cboe, expiration calendar / standard option expiration rule — accessed 2026-08-13
- FINRA, Short Interest Reporting — accessed 2026-08-13
- Federal Reserve, FOMC calendar — accessed 2026-08-13
- NYSE, Holidays & Trading Hours — accessed 2026-08-13
- S&P Dow Jones Indices, index rebalance methodology — accessed 2026-08-13
Deliberately excluded rather than guessed:
- CPI and payrolls dates. bls.gov returned HTTP 403 to this build, so rather than reproduce dates from memory they are omitted. For the release times, econ-release-times covers them.
- Russell reconstitution. FTSE Russell's recon schedule could not be confirmed from the primary source in this build, and it is the kind of date that has changed recently. Omitted rather than published wrong.
- Earnings dates. Company-specific and constantly revised; a static page is the wrong container for them.
Not investment advice. Dates are as published by the primary sources above on 2026-08-13; exchanges and agencies do occasionally amend them, so confirm anything you are actually trading.