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Contract OI history

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Nov 20, 2026 EXPIRATION

YSS $12.50 Put

YSS261120P00012500

Latest saved OI115Oct 23, 2026
Last change-4vs 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. 143710 2026-10-02: 141 OI2026-10-05: 141 OI2026-10-06: 143 OI2026-10-07: 143 OI2026-10-09: 138 OI2026-10-13: 137 OI2026-10-14: 137 OI2026-10-16: 137 OI2026-10-20: 119 OI2026-10-23: 115 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, 2026Viewing115-4
Oct 20, 2026119-18
Oct 16, 20261370
Oct 14, 20261370
Oct 13, 2026137-1
Oct 09, 2026138-5
Oct 07, 20261430
Oct 06, 2026143+2
Oct 05, 20261410
Oct 02, 2026141No prior observation