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Contract OI history

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Oct 23, 2026 EXPIRATION

ISRG $360.00 Put

ISRG261023P00360000

Latest saved OI270Oct 23, 2026
Last change-9vs 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. 2791390 2026-10-09: 7 OI2026-10-13: 19 OI2026-10-14: 19 OI2026-10-15: 23 OI2026-10-16: 23 OI2026-10-21: 279 OI2026-10-23: 270 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, 2026Viewing270-9
Oct 21, 2026279+256
Oct 16, 2026230
Oct 15, 202623+4
Oct 14, 2026190
Oct 13, 202619+12
Oct 09, 20267No prior observation