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Contract OI history

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Jan 15, 2027 EXPIRATION

ISRG $350.00 Put

ISRG270115P00350000

Latest saved OI569Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $350.00 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. 6153070 2026-10-09: 596 OI2026-10-13: 615 OI2026-10-14: 615 OI2026-10-15: 615 OI2026-10-16: 597 OI2026-10-21: 565 OI2026-10-23: 569 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, 2026Viewing569+4
Oct 21, 2026565-32
Oct 16, 2026597-18
Oct 15, 20266150
Oct 14, 20266150
Oct 13, 2026615+19
Oct 09, 2026596No prior observation