OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

OKLO $28.50 Put

OKLO261120P00028500

Latest saved OI1,706Oct 23, 2026
Last change+1,656vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
OKLO $28.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 1,7068530 2026-10-21: 50 OI2026-10-23: 1,706 OI Oct 21, 2026Oct 23, 2026

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

OKLO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,706+1,656
Oct 21, 202650No prior observation