OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

TRN $21.00 Put

TRN270115P00021000

Latest saved OI31Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Sep 30, 2026 onwards
Daily open interest Hover a point for its date and OI
TRN $21.00 put open interest history 11 saved observations from 2026-09-30 to 2026-10-23. Exact values and changes are listed in the table below. 31150 2026-09-30: 1 OI2026-10-05: 30 OI2026-10-06: 30 OI2026-10-07: 30 OI2026-10-08: 30 OI2026-10-09: 31 OI2026-10-12: 31 OI2026-10-14: 31 OI2026-10-16: 31 OI2026-10-21: 31 OI2026-10-23: 31 OI Sep 30, 2026Oct 23, 2026

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

TRN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing310
Oct 21, 2026310
Oct 16, 2026310
Oct 14, 2026310
Oct 12, 2026310
Oct 09, 202631+1
Oct 08, 2026300
Oct 07, 2026300
Oct 06, 2026300
Oct 05, 202630+29
Sep 30, 20261No prior observation