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Contract OI history

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Mar 19, 2027 EXPIRATION

SO $80.00 Put

SO270319P00080000

Latest saved OI562Oct 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 $80.00 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. 5832910 2026-10-02: 244 OI2026-10-05: 244 OI2026-10-06: 244 OI2026-10-07: 286 OI2026-10-08: 380 OI2026-10-09: 398 OI2026-10-13: 583 OI2026-10-14: 583 OI2026-10-15: 582 OI2026-10-16: 562 OI2026-10-21: 562 OI2026-10-23: 562 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, 20265620
Oct 21, 2026Viewing5620
Oct 16, 2026562-20
Oct 15, 2026582-1
Oct 14, 20265830
Oct 13, 2026583+185
Oct 09, 2026398+18
Oct 08, 2026380+94
Oct 07, 2026286+42
Oct 06, 20262440
Oct 05, 20262440
Oct 02, 2026244No prior observation