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Contract OI history

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Mar 19, 2027 EXPIRATION

SO $85.00 Put

SO270319P00085000

Latest saved OI847Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $85.00 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. 8514250 2026-10-02: 263 OI2026-10-05: 263 OI2026-10-06: 263 OI2026-10-07: 263 OI2026-10-08: 268 OI2026-10-09: 268 OI2026-10-13: 851 OI2026-10-14: 851 OI2026-10-15: 850 OI2026-10-16: 849 OI2026-10-21: 849 OI2026-10-23: 847 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, 2026847-2
Oct 21, 2026Viewing8490
Oct 16, 2026849-1
Oct 15, 2026850-1
Oct 14, 20268510
Oct 13, 2026851+583
Oct 09, 20262680
Oct 08, 2026268+5
Oct 07, 20262630
Oct 06, 20262630
Oct 05, 20262630
Oct 02, 2026263No prior observation