OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

YSS $12.50 Put

YSS270115P00012500

Latest saved OI533Oct 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 $12.50 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. 5682840 2026-10-02: 566 OI2026-10-05: 566 OI2026-10-06: 567 OI2026-10-07: 567 OI2026-10-09: 568 OI2026-10-13: 568 OI2026-10-14: 568 OI2026-10-16: 533 OI2026-10-20: 533 OI2026-10-23: 533 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, 2026Viewing5330
Oct 20, 20265330
Oct 16, 2026533-35
Oct 14, 20265680
Oct 13, 20265680
Oct 09, 2026568+1
Oct 07, 20265670
Oct 06, 2026567+1
Oct 05, 20265660
Oct 02, 2026566No prior observation