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Contract OI history

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Jan 21, 2028 EXPIRATION

FOUR $35.00 Put

FOUR280121P00035000

Latest saved OI1,158Oct 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 $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. 1,1585790 2026-10-02: 1,079 OI2026-10-05: 1,079 OI2026-10-06: 1,083 OI2026-10-07: 1,083 OI2026-10-08: 1,083 OI2026-10-09: 1,083 OI2026-10-13: 1,083 OI2026-10-14: 1,083 OI2026-10-15: 1,133 OI2026-10-16: 1,158 OI2026-10-21: 1,158 OI2026-10-23: 1,158 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, 2026Viewing1,1580
Oct 21, 20261,1580
Oct 16, 20261,158+25
Oct 15, 20261,133+50
Oct 14, 20261,0830
Oct 13, 20261,0830
Oct 09, 20261,0830
Oct 08, 20261,0830
Oct 07, 20261,0830
Oct 06, 20261,083+4
Oct 05, 20261,0790
Oct 02, 20261,079No prior observation