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Contract OI history

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Nov 20, 2026 EXPIRATION

O $57.50 Put

O261120P00057500

Latest saved OI591Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $57.50 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. 5912950 2026-10-02: 436 OI2026-10-05: 479 OI2026-10-06: 476 OI2026-10-07: 476 OI2026-10-08: 471 OI2026-10-09: 459 OI2026-10-13: 457 OI2026-10-14: 457 OI2026-10-15: 460 OI2026-10-16: 466 OI2026-10-21: 590 OI2026-10-23: 591 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

O contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing591+1
Oct 21, 2026590+124
Oct 16, 2026466+6
Oct 15, 2026460+3
Oct 14, 20264570
Oct 13, 2026457-2
Oct 09, 2026459-12
Oct 08, 2026471-5
Oct 07, 20264760
Oct 06, 2026476-3
Oct 05, 2026479+43
Oct 02, 2026436No prior observation