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Contract OI history

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Jan 21, 2028 EXPIRATION

ISRG $440.00 Call

ISRG280121C00440000

Latest saved OI304Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $440.00 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. 3201600 2026-10-09: 320 OI2026-10-13: 320 OI2026-10-14: 320 OI2026-10-15: 320 OI2026-10-16: 318 OI2026-10-21: 314 OI2026-10-23: 304 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, 2026Viewing304-10
Oct 21, 2026314-4
Oct 16, 2026318-2
Oct 15, 20263200
Oct 14, 20263200
Oct 13, 20263200
Oct 09, 2026320No prior observation