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Contract OI history

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Nov 20, 2026 EXPIRATION

ISRG $345.00 Put

ISRG261120P00345000

Latest saved OI108Oct 23, 2026
Last change-20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $345.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 132660 2026-10-09: 114 OI2026-10-13: 132 OI2026-10-14: 132 OI2026-10-15: 129 OI2026-10-16: 129 OI2026-10-21: 128 OI2026-10-23: 108 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, 2026Viewing108-20
Oct 21, 2026128-1
Oct 16, 20261290
Oct 15, 2026129-3
Oct 14, 20261320
Oct 13, 2026132+18
Oct 09, 2026114No prior observation