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Contract OI history

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Nov 20, 2026 EXPIRATION

FOUR $30.00 Put

FOUR261120P00030000

Latest saved OI610Oct 23, 2026
Last change+25vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FOUR $30.00 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. 6103050 2026-10-02: 195 OI2026-10-05: 207 OI2026-10-06: 265 OI2026-10-07: 254 OI2026-10-08: 254 OI2026-10-09: 225 OI2026-10-13: 565 OI2026-10-14: 565 OI2026-10-15: 574 OI2026-10-16: 572 OI2026-10-21: 585 OI2026-10-23: 610 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, 2026Viewing610+25
Oct 21, 2026585+13
Oct 16, 2026572-2
Oct 15, 2026574+9
Oct 14, 20265650
Oct 13, 2026565+340
Oct 09, 2026225-29
Oct 08, 20262540
Oct 07, 2026254-11
Oct 06, 2026265+58
Oct 05, 2026207+12
Oct 02, 2026195No prior observation