OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CSX $40.00 Put

CSX270115P00040000

Latest saved OI3,738Oct 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 $40.00 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. 3,7381,8690 2026-10-09: 3,738 OI2026-10-13: 3,738 OI2026-10-14: 3,738 OI2026-10-15: 3,738 OI2026-10-16: 3,738 OI2026-10-21: 3,738 OI2026-10-23: 3,738 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, 2026Viewing3,7380
Oct 21, 20263,7380
Oct 16, 20263,7380
Oct 15, 20263,7380
Oct 14, 20263,7380
Oct 13, 20263,7380
Oct 09, 20263,738No prior observation