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Contract OI history

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Nov 20, 2026 EXPIRATION

ISRG $340.00 Put

ISRG261120P00340000

Latest saved OI573Oct 23, 2026
Last change+8vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $340.00 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. 5732860 2026-10-09: 566 OI2026-10-13: 565 OI2026-10-14: 565 OI2026-10-15: 565 OI2026-10-16: 563 OI2026-10-21: 565 OI2026-10-23: 573 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, 2026Viewing573+8
Oct 21, 2026565+2
Oct 16, 2026563-2
Oct 15, 20265650
Oct 14, 20265650
Oct 13, 2026565-1
Oct 09, 2026566No prior observation