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Contract OI history

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Dec 18, 2026 EXPIRATION

HRTG $25.00 Call

HRTG261218C00025000

Latest saved OI217Oct 23, 2026
Last change-2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRTG $25.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2271130 2026-10-02: 227 OI2026-10-05: 227 OI2026-10-06: 227 OI2026-10-07: 227 OI2026-10-08: 227 OI2026-10-09: 227 OI2026-10-13: 220 OI2026-10-14: 220 OI2026-10-16: 220 OI2026-10-20: 219 OI2026-10-23: 217 OI Oct 02, 2026Oct 23, 2026

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

HRTG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing217-2
Oct 20, 2026219-1
Oct 16, 20262200
Oct 14, 20262200
Oct 13, 2026220-7
Oct 09, 20262270
Oct 08, 20262270
Oct 07, 20262270
Oct 06, 20262270
Oct 05, 20262270
Oct 02, 2026227No prior observation