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Contract OI history

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Apr 16, 2027 EXPIRATION

HTFL $40.00 Put

HTFL270416P00040000

Latest saved OI8Oct 21, 2026
Last change+2vs previous saved observation
Saved market days6Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
HTFL $40.00 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. 840 2026-10-07: 6 OI2026-10-09: 6 OI2026-10-13: 6 OI2026-10-14: 6 OI2026-10-16: 6 OI2026-10-21: 8 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, 2026Viewing8+2
Oct 16, 202660
Oct 14, 202660
Oct 13, 202660
Oct 09, 202660
Oct 07, 20266No prior observation