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Contract OI history

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Dec 18, 2026 EXPIRATION

HRTG $40.00 Call

HRTG261218C00040000

Latest saved OI380Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRTG $40.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3801900 2026-10-02: 372 OI2026-10-05: 372 OI2026-10-06: 373 OI2026-10-07: 373 OI2026-10-08: 373 OI2026-10-09: 373 OI2026-10-13: 373 OI2026-10-14: 376 OI2026-10-16: 378 OI2026-10-20: 378 OI2026-10-23: 380 OI Oct 02, 2026Oct 23, 2026

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

HRTG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing380+2
Oct 20, 20263780
Oct 16, 2026378+2
Oct 14, 2026376+3
Oct 13, 20263730
Oct 09, 20263730
Oct 08, 20263730
Oct 07, 20263730
Oct 06, 2026373+1
Oct 05, 20263720
Oct 02, 2026372No prior observation