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Contract OI history

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Dec 18, 2026 EXPIRATION

OKLO $40.00 Put

OKLO261218P00040000

Latest saved OI3,759Oct 23, 2026
Last change+17vs 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. 3,7591,8790 2026-10-02: 3,354 OI2026-10-05: 3,359 OI2026-10-06: 3,585 OI2026-10-07: 3,588 OI2026-10-08: 3,588 OI2026-10-09: 3,621 OI2026-10-13: 3,725 OI2026-10-14: 3,725 OI2026-10-15: 3,745 OI2026-10-16: 3,702 OI2026-10-21: 3,742 OI2026-10-23: 3,759 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, 20263,759+17
Oct 21, 2026Viewing3,742+40
Oct 16, 20263,702-43
Oct 15, 20263,745+20
Oct 14, 20263,7250
Oct 13, 20263,725+104
Oct 09, 20263,621+33
Oct 08, 20263,5880
Oct 07, 20263,588+3
Oct 06, 20263,585+226
Oct 05, 20263,359+5
Oct 02, 20263,354No prior observation