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Contract OI history

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Nov 20, 2026 EXPIRATION

SO $82.50 Put

SO261120P00082500

Latest saved OI533Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $82.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5802900 2026-10-02: 554 OI2026-10-05: 567 OI2026-10-06: 554 OI2026-10-07: 553 OI2026-10-08: 551 OI2026-10-09: 555 OI2026-10-13: 570 OI2026-10-14: 570 OI2026-10-15: 565 OI2026-10-16: 580 OI2026-10-21: 532 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.

SO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026533+1
Oct 21, 2026Viewing532-48
Oct 16, 2026580+15
Oct 15, 2026565-5
Oct 14, 20265700
Oct 13, 2026570+15
Oct 09, 2026555+4
Oct 08, 2026551-2
Oct 07, 2026553-1
Oct 06, 2026554-13
Oct 05, 2026567+13
Oct 02, 2026554No prior observation