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Contract OI history

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Apr 16, 2027 EXPIRATION

FOUR $35.00 Put

FOUR270416P00035000

Latest saved OI123Oct 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
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. 125620 2026-10-02: 122 OI2026-10-05: 122 OI2026-10-06: 122 OI2026-10-07: 122 OI2026-10-08: 122 OI2026-10-09: 120 OI2026-10-13: 121 OI2026-10-14: 121 OI2026-10-15: 122 OI2026-10-16: 122 OI2026-10-21: 125 OI2026-10-23: 123 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, 2026Viewing123-2
Oct 21, 2026125+3
Oct 16, 20261220
Oct 15, 2026122+1
Oct 14, 20261210
Oct 13, 2026121+1
Oct 09, 2026120-2
Oct 08, 20261220
Oct 07, 20261220
Oct 06, 20261220
Oct 05, 20261220
Oct 02, 2026122No prior observation