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Contract OI history

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Sep 17, 2027 EXPIRATION

O $50.00 Put

O270917P00050000

Latest saved OI459Oct 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
O $50.00 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. 4592290 2026-10-02: 368 OI2026-10-05: 381 OI2026-10-06: 403 OI2026-10-07: 403 OI2026-10-08: 404 OI2026-10-09: 450 OI2026-10-13: 450 OI2026-10-14: 450 OI2026-10-15: 450 OI2026-10-16: 450 OI2026-10-21: 457 OI2026-10-23: 459 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, 2026Viewing459+2
Oct 21, 2026457+7
Oct 16, 20264500
Oct 15, 20264500
Oct 14, 20264500
Oct 13, 20264500
Oct 09, 2026450+46
Oct 08, 2026404+1
Oct 07, 20264030
Oct 06, 2026403+22
Oct 05, 2026381+13
Oct 02, 2026368No prior observation