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Contract OI history

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Jan 19, 2029 EXPIRATION

ISRG $270.00 Put

ISRG290119P00270000

Latest saved OI135Oct 23, 2026
Last change+130vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $270.00 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. 135670 2026-10-09: 0 OI2026-10-13: 5 OI2026-10-14: 5 OI2026-10-15: 5 OI2026-10-16: 5 OI2026-10-21: 5 OI2026-10-23: 135 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, 2026Viewing135+130
Oct 21, 202650
Oct 16, 202650
Oct 15, 202650
Oct 14, 202650
Oct 13, 20265+5
Oct 09, 20260No prior observation