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Contract OI history

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Jan 15, 2027 EXPIRATION

O $40.00 Put

O270115P00040000

Latest saved OI887Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $40.00 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. 8874430 2026-10-02: 885 OI2026-10-05: 885 OI2026-10-06: 887 OI2026-10-07: 887 OI2026-10-08: 887 OI2026-10-09: 887 OI2026-10-13: 887 OI2026-10-14: 887 OI2026-10-15: 887 OI2026-10-16: 887 OI2026-10-21: 887 OI2026-10-23: 887 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, 2026Viewing8870
Oct 21, 20268870
Oct 16, 20268870
Oct 15, 20268870
Oct 14, 20268870
Oct 13, 20268870
Oct 09, 20268870
Oct 08, 20268870
Oct 07, 20268870
Oct 06, 2026887+2
Oct 05, 20268850
Oct 02, 2026885No prior observation