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Contract OI history

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Jan 15, 2027 EXPIRATION

SO $77.50 Put

SO270115P00077500

Latest saved OI821Oct 23, 2026
Last change+54vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $77.50 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. 8214100 2026-10-02: 740 OI2026-10-05: 760 OI2026-10-06: 765 OI2026-10-07: 745 OI2026-10-08: 745 OI2026-10-09: 745 OI2026-10-13: 745 OI2026-10-14: 745 OI2026-10-15: 745 OI2026-10-16: 745 OI2026-10-21: 767 OI2026-10-23: 821 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, 2026821+54
Oct 21, 2026Viewing767+22
Oct 16, 20267450
Oct 15, 20267450
Oct 14, 20267450
Oct 13, 20267450
Oct 09, 20267450
Oct 08, 20267450
Oct 07, 2026745-20
Oct 06, 2026765+5
Oct 05, 2026760+20
Oct 02, 2026740No prior observation