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Contract OI history

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Mar 19, 2027 EXPIRATION

SO $75.00 Put

SO270319P00075000

Latest saved OI1,355Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $75.00 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. 1,3586790 2026-10-02: 1,336 OI2026-10-05: 1,336 OI2026-10-06: 1,336 OI2026-10-07: 1,339 OI2026-10-08: 1,339 OI2026-10-09: 1,339 OI2026-10-13: 1,358 OI2026-10-14: 1,358 OI2026-10-15: 1,358 OI2026-10-16: 1,358 OI2026-10-21: 1,358 OI2026-10-23: 1,355 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, 2026Viewing1,355-3
Oct 21, 20261,3580
Oct 16, 20261,3580
Oct 15, 20261,3580
Oct 14, 20261,3580
Oct 13, 20261,358+19
Oct 09, 20261,3390
Oct 08, 20261,3390
Oct 07, 20261,339+3
Oct 06, 20261,3360
Oct 05, 20261,3360
Oct 02, 20261,336No prior observation