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Contract OI history

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Dec 18, 2026 EXPIRATION

O $50.00 Put

O261218P00050000

Latest saved OI1,608Oct 23, 2026
Last change-9vs 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. 1,6288140 2026-10-02: 1,397 OI2026-10-05: 1,463 OI2026-10-06: 1,522 OI2026-10-07: 1,522 OI2026-10-08: 1,548 OI2026-10-09: 1,547 OI2026-10-13: 1,616 OI2026-10-14: 1,628 OI2026-10-15: 1,613 OI2026-10-16: 1,613 OI2026-10-21: 1,617 OI2026-10-23: 1,608 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, 2026Viewing1,608-9
Oct 21, 20261,617+4
Oct 16, 20261,6130
Oct 15, 20261,613-15
Oct 14, 20261,628+12
Oct 13, 20261,616+69
Oct 09, 20261,547-1
Oct 08, 20261,548+26
Oct 07, 20261,5220
Oct 06, 20261,522+59
Oct 05, 20261,463+66
Oct 02, 20261,397No prior observation