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Contract OI history

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Jan 19, 2029 EXPIRATION

OKLO $40.00 Put

OKLO290119P00040000

Latest saved OI742Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OKLO $40.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7423710 2026-10-02: 716 OI2026-10-05: 716 OI2026-10-06: 726 OI2026-10-07: 726 OI2026-10-08: 726 OI2026-10-09: 726 OI2026-10-13: 731 OI2026-10-14: 731 OI2026-10-15: 731 OI2026-10-16: 731 OI2026-10-21: 736 OI2026-10-23: 742 OI Oct 02, 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, 2026Viewing742+6
Oct 21, 2026736+5
Oct 16, 20267310
Oct 15, 20267310
Oct 14, 20267310
Oct 13, 2026731+5
Oct 09, 20267260
Oct 08, 20267260
Oct 07, 20267260
Oct 06, 2026726+10
Oct 05, 20267160
Oct 02, 2026716No prior observation