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Contract OI history

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Nov 20, 2026 EXPIRATION

HAPN $12.00 Put

HAPN261120P00012000

Latest saved OI203Oct 20, 2026
Last change+33vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
HAPN $12.00 put open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 2031010 2026-10-09: 80 OI2026-10-13: 138 OI2026-10-14: 143 OI2026-10-16: 170 OI2026-10-20: 203 OI Oct 09, 2026Oct 20, 2026

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

HAPN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing203+33
Oct 16, 2026170+27
Oct 14, 2026143+5
Oct 13, 2026138+58
Oct 09, 202680No prior observation