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Contract OI history

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Feb 19, 2027 EXPIRATION

OLN $12.50 Put

OLN270219P00012500

Latest saved OI239Oct 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 $12.50 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. 2391190 2026-10-02: 202 OI2026-10-05: 202 OI2026-10-06: 202 OI2026-10-07: 202 OI2026-10-08: 202 OI2026-10-09: 202 OI2026-10-13: 227 OI2026-10-14: 229 OI2026-10-15: 229 OI2026-10-16: 229 OI2026-10-21: 239 OI2026-10-23: 239 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, 2026Viewing2390
Oct 21, 2026239+10
Oct 16, 20262290
Oct 15, 20262290
Oct 14, 2026229+2
Oct 13, 2026227+25
Oct 09, 20262020
Oct 08, 20262020
Oct 07, 20262020
Oct 06, 20262020
Oct 05, 20262020
Oct 02, 2026202No prior observation