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Contract OI history

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Nov 20, 2026 EXPIRATION

OKLO $27.50 Call

OKLO261120C00027500

Latest saved OI347Oct 23, 2026
Last change+319vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
OKLO $27.50 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 3471730 2026-10-21: 28 OI2026-10-23: 347 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, 2026347+319
Oct 21, 2026Viewing28No prior observation