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Contract OI history

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Jan 15, 2027 EXPIRATION

OLN $17.50 Put

OLN270115P00017500

Latest saved OI900Oct 23, 2026
Last change+1vs 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. 9004500 2026-10-02: 773 OI2026-10-05: 773 OI2026-10-06: 775 OI2026-10-07: 775 OI2026-10-08: 798 OI2026-10-09: 798 OI2026-10-13: 799 OI2026-10-14: 899 OI2026-10-15: 899 OI2026-10-16: 899 OI2026-10-21: 899 OI2026-10-23: 900 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, 2026Viewing900+1
Oct 21, 20268990
Oct 16, 20268990
Oct 15, 20268990
Oct 14, 2026899+100
Oct 13, 2026799+1
Oct 09, 20267980
Oct 08, 2026798+23
Oct 07, 20267750
Oct 06, 2026775+2
Oct 05, 20267730
Oct 02, 2026773No prior observation