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Contract OI history

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Jan 15, 2027 EXPIRATION

ISRG $300.00 Put

ISRG270115P00300000

Latest saved OI638Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $300.00 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. 6403200 2026-10-09: 640 OI2026-10-13: 635 OI2026-10-14: 635 OI2026-10-15: 635 OI2026-10-16: 635 OI2026-10-21: 635 OI2026-10-23: 638 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, 2026Viewing638+3
Oct 21, 20266350
Oct 16, 20266350
Oct 15, 20266350
Oct 14, 20266350
Oct 13, 2026635-5
Oct 09, 2026640No prior observation