OITracker Cboe delayed data

Contract OI history

Back to ON

Oct 30, 2026 EXPIRATION

ON $70.00 Put

ON261030P00070000

Latest saved OI380Oct 23, 2026
Last change+136vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $70.00 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. 3801900 2026-10-09: 187 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-15: 237 OI2026-10-16: 257 OI2026-10-21: 244 OI2026-10-23: 380 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing380+136
Oct 21, 2026244-13
Oct 16, 2026257+20
Oct 15, 2026237+2
Oct 14, 20262350
Oct 13, 2026235+48
Oct 09, 2026187No prior observation