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Contract OI history

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Mar 19, 2027 EXPIRATION

ISRG $500.00 Put

ISRG270319P00500000

Latest saved OI623Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $500.00 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. 6243120 2026-10-09: 624 OI2026-10-13: 624 OI2026-10-14: 624 OI2026-10-15: 624 OI2026-10-16: 624 OI2026-10-21: 624 OI2026-10-23: 623 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, 2026Viewing623-1
Oct 21, 20266240
Oct 16, 20266240
Oct 15, 20266240
Oct 14, 20266240
Oct 13, 20266240
Oct 09, 2026624No prior observation