OITracker Cboe delayed data

Contract OI history

Back to ISRG

Nov 20, 2026 EXPIRATION

ISRG $310.00 Put

ISRG261120P00310000

Latest saved OI416Oct 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 $310.00 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. 4272130 2026-10-09: 285 OI2026-10-13: 427 OI2026-10-14: 427 OI2026-10-15: 427 OI2026-10-16: 427 OI2026-10-21: 417 OI2026-10-23: 416 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, 2026Viewing416-1
Oct 21, 2026417-10
Oct 16, 20264270
Oct 15, 20264270
Oct 14, 20264270
Oct 13, 2026427+142
Oct 09, 2026285No prior observation