---
slug: 001-us-equities-settlement-cycle
origin: U.S. Securities and Exchange Commission — 2017 amendment to Rule 15c6-1 (T+3 → T+2)
origin-url: https://www.sec.gov/rules/final/2017/34-80295.pdf
edition: 2017-09-05
license: CC0-1.0
converter: hand-authored
content-hash: sha256:8cfba7f576124241e26f770a388d3d2697160f9a315ddbbff88a8b0e4320d8d4
status: superseded
---

# US equities settlement cycle (T+2, superseded)

Under the 2017 amendment to SEC Rule 15c6-1, the US standard settlement cycle
was **T+2** — a standard US-equity trade settled **two business days** after its
trade date — effective **5 September 2017**.

This is the rule in force **before 28 May 2024**. It is retained here, never
overwritten, so an edition-pinned citation to the older cycle — the `@2017-09-05` edition
— always resolves, and a trade struck before the cutover can still be settled
under the cycle that actually governed it.

Superseded by the `2024-05-28` (T+1) edition. This is a hand-authored
distillation, not a verbatim reproduction of the rule text.