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Contract OI history

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Dec 17, 2027 EXPIRATION

HTFL $40.00 Call

HTFL271217C00040000

Latest saved OI19Oct 21, 2026
Last change+10vs previous saved observation
Saved market days6Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
HTFL $40.00 call open interest history 6 saved observations from 2026-10-07 to 2026-10-21. Exact values and changes are listed in the table below. 1990 2026-10-07: 9 OI2026-10-09: 9 OI2026-10-13: 9 OI2026-10-14: 9 OI2026-10-16: 9 OI2026-10-21: 19 OI Oct 07, 2026Oct 21, 2026

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

HTFL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing19+10
Oct 16, 202690
Oct 14, 202690
Oct 13, 202690
Oct 09, 202690
Oct 07, 20269No prior observation