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Contract OI history

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Oct 23, 2026 EXPIRATION

ISRG $415.00 Put

ISRG261023P00415000

Latest saved OI492Oct 23, 2026
Last change-89vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $415.00 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. 5812900 2026-10-09: 464 OI2026-10-13: 467 OI2026-10-14: 467 OI2026-10-15: 468 OI2026-10-16: 467 OI2026-10-21: 581 OI2026-10-23: 492 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, 2026Viewing492-89
Oct 21, 2026581+114
Oct 16, 2026467-1
Oct 15, 2026468+1
Oct 14, 20264670
Oct 13, 2026467+3
Oct 09, 2026464No prior observation