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Contract OI history

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Dec 17, 2027 EXPIRATION

HTFL $45.00 Put

HTFL271217P00045000

Latest saved OI19Oct 21, 2026
Last change+3vs previous saved observation
Saved market days6Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
HTFL $45.00 put 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: 16 OI2026-10-09: 16 OI2026-10-13: 16 OI2026-10-14: 16 OI2026-10-16: 16 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+3
Oct 16, 2026160
Oct 14, 2026160
Oct 13, 2026160
Oct 09, 2026160
Oct 07, 202616No prior observation