OITracker Cboe delayed data

Contract OI history

Back to ISRG

Jan 15, 2027 EXPIRATION

ISRG $420.00 Put

ISRG270115P00420000

Latest saved OI317Oct 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 $420.00 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. 3201600 2026-10-09: 317 OI2026-10-13: 320 OI2026-10-14: 320 OI2026-10-15: 320 OI2026-10-16: 320 OI2026-10-21: 320 OI2026-10-23: 317 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, 2026Viewing317-3
Oct 21, 20263200
Oct 16, 20263200
Oct 15, 20263200
Oct 14, 20263200
Oct 13, 2026320+3
Oct 09, 2026317No prior observation