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Contract OI history

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Oct 23, 2026 EXPIRATION

OKLO $31.50 Put

OKLO261023P00031500

Latest saved OI220Oct 23, 2026
Last change-174vs previous saved observation
Saved market days11Oct 05, 2026 onwards
Daily open interest Hover a point for its date and OI
OKLO $31.50 put open interest history 11 saved observations from 2026-10-05 to 2026-10-23. Exact values and changes are listed in the table below. 3941970 2026-10-05: 0 OI2026-10-06: 7 OI2026-10-07: 10 OI2026-10-08: 10 OI2026-10-09: 147 OI2026-10-13: 305 OI2026-10-14: 305 OI2026-10-15: 326 OI2026-10-16: 330 OI2026-10-21: 394 OI2026-10-23: 220 OI Oct 05, 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, 2026220-174
Oct 21, 2026Viewing394+64
Oct 16, 2026330+4
Oct 15, 2026326+21
Oct 14, 20263050
Oct 13, 2026305+158
Oct 09, 2026147+137
Oct 08, 2026100
Oct 07, 202610+3
Oct 06, 20267+7
Oct 05, 20260No prior observation