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Contract OI history

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Mar 19, 2027 EXPIRATION

ONL $2.50 Put

ONL270319P00002500

Latest saved OI80Oct 23, 2026
Last change+33vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONL $2.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 80400 2026-10-02: 4 OI2026-10-05: 4 OI2026-10-06: 4 OI2026-10-07: 35 OI2026-10-08: 35 OI2026-10-09: 35 OI2026-10-13: 36 OI2026-10-14: 47 OI2026-10-16: 47 OI2026-10-20: 47 OI2026-10-23: 80 OI Oct 02, 2026Oct 23, 2026

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

ONL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202680+33
Oct 20, 2026Viewing470
Oct 16, 2026470
Oct 14, 202647+11
Oct 13, 202636+1
Oct 09, 2026350
Oct 08, 2026350
Oct 07, 202635+31
Oct 06, 202640
Oct 05, 202640
Oct 02, 20264No prior observation