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Contract OI history

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Jan 15, 2027 EXPIRATION

HRB $55.00 Call

HRB270115C00055000

Latest saved OI548Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRB $55.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5482740 2026-10-02: 271 OI2026-10-05: 271 OI2026-10-06: 271 OI2026-10-07: 270 OI2026-10-08: 270 OI2026-10-09: 270 OI2026-10-13: 269 OI2026-10-14: 269 OI2026-10-15: 269 OI2026-10-16: 543 OI2026-10-21: 548 OI2026-10-23: 548 OI Oct 02, 2026Oct 23, 2026

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

HRB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5480
Oct 21, 2026548+5
Oct 16, 2026543+274
Oct 15, 20262690
Oct 14, 20262690
Oct 13, 2026269-1
Oct 09, 20262700
Oct 08, 20262700
Oct 07, 2026270-1
Oct 06, 20262710
Oct 05, 20262710
Oct 02, 2026271No prior observation