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Contract OI history

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Dec 18, 2026 EXPIRATION

SHAK $40.00 Put

SHAK261218P00040000

Latest saved OI720Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SHAK $40.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7213600 2026-10-02: 659 OI2026-10-05: 659 OI2026-10-06: 659 OI2026-10-07: 680 OI2026-10-08: 680 OI2026-10-09: 680 OI2026-10-13: 721 OI2026-10-14: 721 OI2026-10-15: 721 OI2026-10-21: 721 OI2026-10-23: 720 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

SHAK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing720-1
Oct 21, 20267210
Oct 15, 20267210
Oct 14, 20267210
Oct 13, 2026721+41
Oct 09, 20266800
Oct 08, 20266800
Oct 07, 2026680+21
Oct 06, 20266590
Oct 05, 20266590
Oct 02, 2026659No prior observation