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Contract OI history

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Jan 15, 2027 EXPIRATION

CSX $27.50 Put

CSX270115P00027500

Latest saved OI3,617Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSX $27.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,6171,8080 2026-10-09: 3,617 OI2026-10-13: 3,617 OI2026-10-14: 3,617 OI2026-10-15: 3,617 OI2026-10-16: 3,617 OI2026-10-21: 3,617 OI2026-10-23: 3,617 OI Oct 09, 2026Oct 23, 2026

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

CSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,6170
Oct 21, 20263,6170
Oct 16, 20263,6170
Oct 15, 20263,6170
Oct 14, 20263,6170
Oct 13, 20263,6170
Oct 09, 20263,617No prior observation