OITracker Cboe delayed data

Contract OI history

Back to ISRG

Oct 23, 2026 EXPIRATION

ISRG $370.00 Put

ISRG261023P00370000

Latest saved OI456Oct 23, 2026
Last change+9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $370.00 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. 4562280 2026-10-09: 112 OI2026-10-13: 115 OI2026-10-14: 115 OI2026-10-15: 115 OI2026-10-16: 117 OI2026-10-21: 447 OI2026-10-23: 456 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, 2026Viewing456+9
Oct 21, 2026447+330
Oct 16, 2026117+2
Oct 15, 20261150
Oct 14, 20261150
Oct 13, 2026115+3
Oct 09, 2026112No prior observation