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Contract OI history

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Dec 18, 2026 EXPIRATION

YSS $25.00 Put

YSS261218P00025000

Latest saved OI0Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
YSS $25.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 39190 2026-10-02: 39 OI2026-10-05: 39 OI2026-10-06: 39 OI2026-10-07: 39 OI2026-10-09: 38 OI2026-10-13: 37 OI2026-10-14: 37 OI2026-10-16: 37 OI2026-10-20: 0 OI2026-10-23: 0 OI Oct 02, 2026Oct 23, 2026

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

YSS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing00
Oct 20, 20260-37
Oct 16, 2026370
Oct 14, 2026370
Oct 13, 202637-1
Oct 09, 202638-1
Oct 07, 2026390
Oct 06, 2026390
Oct 05, 2026390
Oct 02, 202639No prior observation