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Contract OI history

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Dec 18, 2026 EXPIRATION

HTFL $35.00 Put

HTFL261218P00035000

Latest saved OI372Oct 21, 2026
Last change0vs previous saved observation
Saved market days6Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
HTFL $35.00 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. 3721860 2026-10-07: 372 OI2026-10-09: 372 OI2026-10-13: 372 OI2026-10-14: 372 OI2026-10-16: 372 OI2026-10-21: 372 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, 2026Viewing3720
Oct 16, 20263720
Oct 14, 20263720
Oct 13, 20263720
Oct 09, 20263720
Oct 07, 2026372No prior observation