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Contract OI history

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Jan 15, 2027 EXPIRATION

HTFL $45.00 Put

HTFL270115P00045000

Latest saved OI45Oct 21, 2026
Last change+1vs 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. 45220 2026-10-07: 44 OI2026-10-09: 44 OI2026-10-13: 44 OI2026-10-14: 44 OI2026-10-16: 44 OI2026-10-21: 45 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, 2026Viewing45+1
Oct 16, 2026440
Oct 14, 2026440
Oct 13, 2026440
Oct 09, 2026440
Oct 07, 202644No prior observation