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Contract OI history

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Nov 20, 2026 EXPIRATION

SO $85.00 Put

SO261120P00085000

Latest saved OI1,605Oct 23, 2026
Last change+38vs 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. 1,6058020 2026-10-02: 1,518 OI2026-10-05: 1,517 OI2026-10-06: 1,517 OI2026-10-07: 1,510 OI2026-10-08: 1,511 OI2026-10-09: 1,506 OI2026-10-13: 1,506 OI2026-10-14: 1,506 OI2026-10-15: 1,530 OI2026-10-16: 1,546 OI2026-10-21: 1,567 OI2026-10-23: 1,605 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, 20261,605+38
Oct 21, 2026Viewing1,567+21
Oct 16, 20261,546+16
Oct 15, 20261,530+24
Oct 14, 20261,5060
Oct 13, 20261,5060
Oct 09, 20261,506-5
Oct 08, 20261,511+1
Oct 07, 20261,510-7
Oct 06, 20261,5170
Oct 05, 20261,517-1
Oct 02, 20261,518No prior observation