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Contract OI history

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Nov 20, 2026 EXPIRATION

ISRG $360.00 Put

ISRG261120P00360000

Latest saved OI231Oct 23, 2026
Last change-17vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $360.00 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. 2481240 2026-10-09: 184 OI2026-10-13: 198 OI2026-10-14: 198 OI2026-10-15: 198 OI2026-10-16: 198 OI2026-10-21: 248 OI2026-10-23: 231 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, 2026Viewing231-17
Oct 21, 2026248+50
Oct 16, 20261980
Oct 15, 20261980
Oct 14, 20261980
Oct 13, 2026198+14
Oct 09, 2026184No prior observation