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Contract OI history

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Sep 17, 2027 EXPIRATION

SO $82.50 Put

SO270917P00082500

Latest saved OI650Oct 23, 2026
Last change0vs 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. 6503250 2026-10-02: 175 OI2026-10-05: 257 OI2026-10-06: 258 OI2026-10-07: 357 OI2026-10-08: 483 OI2026-10-09: 483 OI2026-10-13: 650 OI2026-10-14: 650 OI2026-10-15: 650 OI2026-10-16: 650 OI2026-10-21: 650 OI2026-10-23: 650 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, 2026Viewing6500
Oct 21, 20266500
Oct 16, 20266500
Oct 15, 20266500
Oct 14, 20266500
Oct 13, 2026650+167
Oct 09, 20264830
Oct 08, 2026483+126
Oct 07, 2026357+99
Oct 06, 2026258+1
Oct 05, 2026257+82
Oct 02, 2026175No prior observation