OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ISRG $380.00 Put

ISRG270115P00380000

Latest saved OI336Oct 23, 2026
Last change+10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $380.00 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. 3361680 2026-10-09: 209 OI2026-10-13: 218 OI2026-10-14: 218 OI2026-10-15: 218 OI2026-10-16: 318 OI2026-10-21: 326 OI2026-10-23: 336 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, 2026Viewing336+10
Oct 21, 2026326+8
Oct 16, 2026318+100
Oct 15, 20262180
Oct 14, 20262180
Oct 13, 2026218+9
Oct 09, 2026209No prior observation