OITracker Cboe delayed data

Contract OI history

Back to BX

Mar 19, 2027 EXPIRATION

BX $75.00 Put

BX270319P00075000

Latest saved OI569Oct 23, 2026
Last change+226vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $75.00 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. 5692840 2026-10-02: 194 OI2026-10-05: 194 OI2026-10-06: 194 OI2026-10-07: 194 OI2026-10-08: 195 OI2026-10-09: 195 OI2026-10-13: 196 OI2026-10-14: 198 OI2026-10-15: 198 OI2026-10-16: 204 OI2026-10-21: 343 OI2026-10-23: 569 OI Oct 02, 2026Oct 23, 2026

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

BX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing569+226
Oct 21, 2026343+139
Oct 16, 2026204+6
Oct 15, 20261980
Oct 14, 2026198+2
Oct 13, 2026196+1
Oct 09, 20261950
Oct 08, 2026195+1
Oct 07, 20261940
Oct 06, 20261940
Oct 05, 20261940
Oct 02, 2026194No prior observation