T+1 settlement dates
Since 28 May 2024, most US broker-dealer securities trades settle one business day after the trade date (T+1), under the SEC's amendment to Rule 15c6-1. Before that the standard was T+2.
Counting the business day
Settlement needs both the market and the payment system open, so the usual joint calendar is NYSE + Federal Reserve. The two differ: when a holiday falls on Saturday, NYSE closes on Friday but the Fed stays open; Columbus Day and Veterans Day close the Fed but not NYSE. A day counts only if both are open.
| Trade date | T+1 (XNYS+FED) | Why |
|---|---|---|
| Thu 2026-12-24 | Mon 2026-12-28 | Christmas Friday, then the weekend |
| Fri 2026-10-09 | Tue 2026-10-13 | Columbus Day closes the Fed (NYSE trades) |
| Thu 2027-06-17 | Mon 2027-06-21 | NYSE observes Juneteenth on Fri 6/18 (the Fed does not) |
Calculate a settlement date or call GET /v1/settlement-date?trade_date=2026-12-24&t=1.
Sources: SEC press release 2023-29 (T+1 adoption), NYSE holidays, Federal Reserve holiday schedules.