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Contract OI history

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Jan 21, 2028 EXPIRATION

HAPN $3.00 Put

HAPN280121P00003000

Latest saved OI1,134Oct 20, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
HAPN $3.00 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. 1,1345670 2026-10-09: 1,134 OI2026-10-13: 1,134 OI2026-10-14: 1,134 OI2026-10-16: 1,134 OI2026-10-20: 1,134 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, 2026Viewing1,1340
Oct 16, 20261,1340
Oct 14, 20261,1340
Oct 13, 20261,1340
Oct 09, 20261,134No prior observation