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Contract OI history

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Dec 18, 2026 EXPIRATION

FOUR $50.00 Put

FOUR261218P00050000

Latest saved OI1,169Oct 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 $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. 1,1695840 2026-10-02: 1,169 OI2026-10-05: 1,169 OI2026-10-06: 1,169 OI2026-10-07: 1,169 OI2026-10-08: 1,169 OI2026-10-09: 1,169 OI2026-10-13: 1,169 OI2026-10-14: 1,169 OI2026-10-15: 1,169 OI2026-10-16: 1,169 OI2026-10-21: 1,169 OI2026-10-23: 1,169 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, 2026Viewing1,1690
Oct 21, 20261,1690
Oct 16, 20261,1690
Oct 15, 20261,1690
Oct 14, 20261,1690
Oct 13, 20261,1690
Oct 09, 20261,1690
Oct 08, 20261,1690
Oct 07, 20261,1690
Oct 06, 20261,1690
Oct 05, 20261,1690
Oct 02, 20261,169No prior observation