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Contract OI history

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Nov 20, 2026 EXPIRATION

FOUR $35.00 Put

FOUR261120P00035000

Latest saved OI3,318Oct 23, 2026
Last change+44vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FOUR $35.00 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. 3,3181,6590 2026-10-02: 490 OI2026-10-05: 516 OI2026-10-06: 676 OI2026-10-07: 693 OI2026-10-08: 693 OI2026-10-09: 699 OI2026-10-13: 777 OI2026-10-14: 777 OI2026-10-15: 1,952 OI2026-10-16: 1,948 OI2026-10-21: 3,274 OI2026-10-23: 3,318 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, 2026Viewing3,318+44
Oct 21, 20263,274+1,326
Oct 16, 20261,948-4
Oct 15, 20261,952+1,175
Oct 14, 20267770
Oct 13, 2026777+78
Oct 09, 2026699+6
Oct 08, 20266930
Oct 07, 2026693+17
Oct 06, 2026676+160
Oct 05, 2026516+26
Oct 02, 2026490No prior observation