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Contract OI history

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Jan 21, 2028 EXPIRATION

HAPN $22.00 Call

HAPN280121C00022000

Latest saved OI405Oct 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 $22.00 call open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 4052020 2026-10-09: 405 OI2026-10-13: 405 OI2026-10-14: 405 OI2026-10-16: 405 OI2026-10-20: 405 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, 2026Viewing4050
Oct 16, 20264050
Oct 14, 20264050
Oct 13, 20264050
Oct 09, 2026405No prior observation