# SIP Timestamp for Trade Assignment

**URL:** <https://forum.alpaca.markets/t/sip-timestamp-for-trade-assignment/19782>\
**Category:** Alpaca Integration Applications\
**Created:** [October 1, 2026, 8:26pm UTC](https://forum.alpaca.markets/t/sip-timestamp-for-trade-assignment/19782 "2026-10-01T20:26:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![daka2026](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@daka2026](https://forum.alpaca.markets/u/daka2026)\
**Post date:** [October 1, 2026, 8:26pm UTC](https://forum.alpaca.markets/t/sip-timestamp-for-trade-assignment/19782/1 "2026-10-01T20:26:58Z")

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For /v2/stocks/{symbol}/trades?feed=sip, do start and end filter the returned t field, and is t the SIP timestamp used to assign trades to historical minute bars?