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Contract OI history

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Apr 16, 2027 EXPIRATION

FOUR $40.00 Put

FOUR270416P00040000

Latest saved OI293Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FOUR $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. 2931460 2026-10-02: 59 OI2026-10-05: 59 OI2026-10-06: 66 OI2026-10-07: 66 OI2026-10-08: 66 OI2026-10-09: 66 OI2026-10-13: 59 OI2026-10-14: 59 OI2026-10-15: 59 OI2026-10-16: 59 OI2026-10-21: 293 OI2026-10-23: 293 OI Oct 02, 2026Oct 23, 2026

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

FOUR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2930
Oct 21, 2026293+234
Oct 16, 2026590
Oct 15, 2026590
Oct 14, 2026590
Oct 13, 202659-7
Oct 09, 2026660
Oct 08, 2026660
Oct 07, 2026660
Oct 06, 202666+7
Oct 05, 2026590
Oct 02, 202659No prior observation