OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BFLY $5.00 Put

BFLY270115P00005000

Latest saved OI1,571Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $5.00 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. 1,5717850 2026-10-02: 571 OI2026-10-05: 571 OI2026-10-06: 571 OI2026-10-07: 571 OI2026-10-08: 571 OI2026-10-09: 571 OI2026-10-13: 571 OI2026-10-14: 571 OI2026-10-15: 571 OI2026-10-16: 571 OI2026-10-21: 1,571 OI2026-10-23: 1,571 OI Oct 02, 2026Oct 23, 2026

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

BFLY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,5710
Oct 21, 20261,571+1,000
Oct 16, 20265710
Oct 15, 20265710
Oct 14, 20265710
Oct 13, 20265710
Oct 09, 20265710
Oct 08, 20265710
Oct 07, 20265710
Oct 06, 20265710
Oct 05, 20265710
Oct 02, 2026571No prior observation