OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

OPEN $3.50 Call

OPEN261030C00003500

Latest saved OI1,375Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $3.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,3756870 2026-10-09: 1,128 OI2026-10-13: 1,101 OI2026-10-14: 1,101 OI2026-10-15: 1,344 OI2026-10-16: 1,368 OI2026-10-21: 1,375 OI2026-10-23: 1,375 OI Oct 09, 2026Oct 23, 2026

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

OPEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,3750
Oct 21, 20261,375+7
Oct 16, 20261,368+24
Oct 15, 20261,344+243
Oct 14, 20261,1010
Oct 13, 20261,101-27
Oct 09, 20261,128No prior observation