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Contract OI history

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Dec 18, 2026 EXPIRATION

ISRG $540.00 Call

ISRG261218C00540000

Latest saved OI661Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $540.00 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. 6643320 2026-10-09: 664 OI2026-10-13: 661 OI2026-10-14: 661 OI2026-10-15: 661 OI2026-10-16: 661 OI2026-10-21: 661 OI2026-10-23: 661 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, 2026Viewing6610
Oct 21, 20266610
Oct 16, 20266610
Oct 15, 20266610
Oct 14, 20266610
Oct 13, 2026661-3
Oct 09, 2026664No prior observation