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Contract OI history

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Feb 19, 2027 EXPIRATION

SO $87.50 Put

SO270219P00087500

Latest saved OI49Oct 23, 2026
Last change+27vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $87.50 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. 49240 2026-10-02: 15 OI2026-10-05: 15 OI2026-10-06: 15 OI2026-10-07: 14 OI2026-10-08: 14 OI2026-10-09: 14 OI2026-10-13: 22 OI2026-10-14: 22 OI2026-10-15: 22 OI2026-10-16: 22 OI2026-10-21: 22 OI2026-10-23: 49 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, 2026Viewing49+27
Oct 21, 2026220
Oct 16, 2026220
Oct 15, 2026220
Oct 14, 2026220
Oct 13, 202622+8
Oct 09, 2026140
Oct 08, 2026140
Oct 07, 202614-1
Oct 06, 2026150
Oct 05, 2026150
Oct 02, 202615No prior observation