OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CSX $30.00 Put

CSX261218P00030000

Latest saved OI1,201Oct 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 $30.00 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. 1,2016000 2026-10-09: 1,201 OI2026-10-13: 1,201 OI2026-10-14: 1,201 OI2026-10-15: 1,201 OI2026-10-16: 1,201 OI2026-10-21: 1,201 OI2026-10-23: 1,201 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, 2026Viewing1,2010
Oct 21, 20261,2010
Oct 16, 20261,2010
Oct 15, 20261,2010
Oct 14, 20261,2010
Oct 13, 20261,2010
Oct 09, 20261,201No prior observation