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Contract OI history

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Nov 27, 2026 EXPIRATION

ISRG $395.00 Put

ISRG261127P00395000

Latest saved OI146Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $395.00 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. 146730 2026-10-09: 0 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 2 OI2026-10-16: 137 OI2026-10-21: 143 OI2026-10-23: 146 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, 2026Viewing146+3
Oct 21, 2026143+6
Oct 16, 2026137+135
Oct 15, 20262+1
Oct 14, 202610
Oct 13, 20261+1
Oct 09, 20260No prior observation