OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

UL $50.00 Put

UL261120P00050000

Latest saved OI406Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UL $50.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4062030 2026-10-02: 403 OI2026-10-05: 403 OI2026-10-06: 404 OI2026-10-07: 404 OI2026-10-08: 404 OI2026-10-09: 404 OI2026-10-13: 406 OI2026-10-14: 406 OI2026-10-16: 406 OI2026-10-21: 406 OI2026-10-23: 406 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

UL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264060
Oct 21, 2026Viewing4060
Oct 16, 20264060
Oct 14, 20264060
Oct 13, 2026406+2
Oct 09, 20264040
Oct 08, 20264040
Oct 07, 20264040
Oct 06, 2026404+1
Oct 05, 20264030
Oct 02, 2026403No prior observation