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Contract OI history

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Dec 18, 2026 EXPIRATION

CSX $42.50 Put

CSX261218P00042500

Latest saved OI466Oct 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 $42.50 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. 4662330 2026-10-09: 454 OI2026-10-13: 456 OI2026-10-14: 456 OI2026-10-15: 462 OI2026-10-16: 462 OI2026-10-21: 466 OI2026-10-23: 466 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, 2026Viewing4660
Oct 21, 2026466+4
Oct 16, 20264620
Oct 15, 2026462+6
Oct 14, 20264560
Oct 13, 2026456+2
Oct 09, 2026454No prior observation