OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

TENB $40.00 Call

TENB261218C00040000

Latest saved OI1,990Oct 23, 2026
Last change-4vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TENB $40.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,0561,0280 2026-10-09: 2,056 OI2026-10-13: 2,005 OI2026-10-14: 1,979 OI2026-10-16: 1,996 OI2026-10-20: 1,994 OI2026-10-23: 1,990 OI Oct 09, 2026Oct 23, 2026

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

TENB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,990-4
Oct 20, 20261,994-2
Oct 16, 20261,996+17
Oct 14, 20261,979-26
Oct 13, 20262,005-51
Oct 09, 20262,056No prior observation