OITracker Cboe delayed data

Contract OI history

Back to ON

Apr 16, 2027 EXPIRATION

ON $70.00 Put

ON270416P00070000

Latest saved OI311Oct 23, 2026
Last change0vs 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. 3111550 2026-10-09: 280 OI2026-10-13: 295 OI2026-10-14: 295 OI2026-10-15: 297 OI2026-10-16: 297 OI2026-10-21: 311 OI2026-10-23: 311 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, 2026Viewing3110
Oct 21, 2026311+14
Oct 16, 20262970
Oct 15, 2026297+2
Oct 14, 20262950
Oct 13, 2026295+15
Oct 09, 2026280No prior observation