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Contract OI history

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Oct 23, 2026 EXPIRATION

SO $85.00 Put

SO261023P00085000

Latest saved OI323Oct 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. 4172080 2026-10-02: 417 OI2026-10-05: 331 OI2026-10-06: 330 OI2026-10-07: 345 OI2026-10-08: 324 OI2026-10-09: 325 OI2026-10-13: 336 OI2026-10-14: 336 OI2026-10-15: 335 OI2026-10-16: 335 OI2026-10-21: 325 OI2026-10-23: 323 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, 2026Viewing323-2
Oct 21, 2026325-10
Oct 16, 20263350
Oct 15, 2026335-1
Oct 14, 20263360
Oct 13, 2026336+11
Oct 09, 2026325+1
Oct 08, 2026324-21
Oct 07, 2026345+15
Oct 06, 2026330-1
Oct 05, 2026331-86
Oct 02, 2026417No prior observation