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Contract OI history

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Oct 23, 2026 EXPIRATION

ISRG $427.50 Call

ISRG261023C00427500

Latest saved OI37Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $427.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 37180 2026-10-09: 3 OI2026-10-13: 11 OI2026-10-14: 11 OI2026-10-15: 11 OI2026-10-16: 14 OI2026-10-21: 35 OI2026-10-23: 37 OI Oct 09, 2026Oct 23, 2026

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

ISRG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing37+2
Oct 21, 202635+21
Oct 16, 202614+3
Oct 15, 2026110
Oct 14, 2026110
Oct 13, 202611+8
Oct 09, 20263No prior observation