OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

BOT $35.00 Call

BOT270521C00035000

Latest saved OI145Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BOT $35.00 call open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 145720 2026-10-08: 143 OI2026-10-09: 143 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-15: 145 OI2026-10-16: 145 OI2026-10-20: 145 OI2026-10-23: 145 OI Oct 08, 2026Oct 23, 2026

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

BOT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1450
Oct 20, 20261450
Oct 16, 20261450
Oct 15, 20261450
Oct 14, 20261450
Oct 13, 2026145+2
Oct 09, 20261430
Oct 08, 2026143No prior observation