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Contract OI history

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Mar 19, 2027 EXPIRATION

ISRG $430.00 Put

ISRG270319P00430000

Latest saved OI139Oct 23, 2026
Last change+101vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $430.00 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. 139690 2026-10-09: 24 OI2026-10-13: 25 OI2026-10-14: 25 OI2026-10-15: 25 OI2026-10-16: 26 OI2026-10-21: 38 OI2026-10-23: 139 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, 2026Viewing139+101
Oct 21, 202638+12
Oct 16, 202626+1
Oct 15, 2026250
Oct 14, 2026250
Oct 13, 202625+1
Oct 09, 202624No prior observation