OITracker Cboe delayed data

Contract OI history

Back to ON

Jan 15, 2027 EXPIRATION

ON $38.00 Put

ON270115P00038000

Latest saved OI1,710Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $38.00 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. 1,7108550 2026-10-09: 1,705 OI2026-10-13: 1,706 OI2026-10-14: 1,706 OI2026-10-15: 1,706 OI2026-10-16: 1,706 OI2026-10-21: 1,708 OI2026-10-23: 1,710 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, 2026Viewing1,710+2
Oct 21, 20261,708+2
Oct 16, 20261,7060
Oct 15, 20261,7060
Oct 14, 20261,7060
Oct 13, 20261,706+1
Oct 09, 20261,705No prior observation