OITracker Cboe delayed data

Contract OI history

Back to BSP

Nov 20, 2026 EXPIRATION

BSP $38.00 Put

BSP261120P00038000

Latest saved OI549Oct 23, 2026
Last change+485vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BSP $38.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5492740 2026-10-08: 4 OI2026-10-13: 4 OI2026-10-14: 4 OI2026-10-15: 11 OI2026-10-16: 12 OI2026-10-21: 64 OI2026-10-23: 549 OI Oct 08, 2026Oct 23, 2026

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

BSP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing549+485
Oct 21, 202664+52
Oct 16, 202612+1
Oct 15, 202611+7
Oct 14, 202640
Oct 13, 202640
Oct 08, 20264No prior observation