OITracker Cboe delayed data

Contract OI history

Back to CSX

May 21, 2027 EXPIRATION

CSX $50.00 Put

CSX270521P00050000

Latest saved OI4Oct 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 $50.00 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. 420 2026-10-09: 0 OI2026-10-13: 4 OI2026-10-14: 4 OI2026-10-15: 4 OI2026-10-16: 4 OI2026-10-21: 4 OI2026-10-23: 4 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, 2026Viewing40
Oct 21, 202640
Oct 16, 202640
Oct 15, 202640
Oct 14, 202640
Oct 13, 20264+4
Oct 09, 20260No prior observation