OITracker Cboe delayed data

Contract OI history

Back to BORR

Jan 21, 2028 EXPIRATION

BORR $2.50 Put

BORR280121P00002500

Latest saved OI16,578Oct 23, 2026
Last change+8,150vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BORR $2.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 16,5788,2890 2026-10-02: 557 OI2026-10-05: 557 OI2026-10-06: 557 OI2026-10-07: 557 OI2026-10-08: 557 OI2026-10-09: 557 OI2026-10-13: 696 OI2026-10-14: 792 OI2026-10-15: 1,645 OI2026-10-16: 1,645 OI2026-10-21: 8,428 OI2026-10-23: 16,578 OI Oct 02, 2026Oct 23, 2026

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

BORR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing16,578+8,150
Oct 21, 20268,428+6,783
Oct 16, 20261,6450
Oct 15, 20261,645+853
Oct 14, 2026792+96
Oct 13, 2026696+139
Oct 09, 20265570
Oct 08, 20265570
Oct 07, 20265570
Oct 06, 20265570
Oct 05, 20265570
Oct 02, 2026557No prior observation