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Contract OI history

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Nov 20, 2026 EXPIRATION

OLN $17.50 Put

OLN261120P00017500

Latest saved OI967Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OLN $17.50 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. 9674830 2026-10-02: 827 OI2026-10-05: 861 OI2026-10-06: 857 OI2026-10-07: 924 OI2026-10-08: 924 OI2026-10-09: 926 OI2026-10-13: 945 OI2026-10-14: 945 OI2026-10-15: 945 OI2026-10-16: 951 OI2026-10-21: 967 OI2026-10-23: 967 OI Oct 02, 2026Oct 23, 2026

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

OLN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing9670
Oct 21, 2026967+16
Oct 16, 2026951+6
Oct 15, 20269450
Oct 14, 20269450
Oct 13, 2026945+19
Oct 09, 2026926+2
Oct 08, 20269240
Oct 07, 2026924+67
Oct 06, 2026857-4
Oct 05, 2026861+34
Oct 02, 2026827No prior observation