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Contract OI history

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Dec 18, 2026 EXPIRATION

HRMY $27.50 Put

HRMY261218P00027500

Latest saved OI5,680Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
HRMY $27.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6,3893,1940 2026-10-09: 6,214 OI2026-10-13: 6,389 OI2026-10-14: 6,380 OI2026-10-16: 6,380 OI2026-10-20: 5,680 OI2026-10-23: 5,680 OI Oct 09, 2026Oct 23, 2026

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

HRMY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5,6800
Oct 20, 20265,680-700
Oct 16, 20266,3800
Oct 14, 20266,380-9
Oct 13, 20266,389+175
Oct 09, 20266,214No prior observation