OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

B $34.00 Put

B270115P00034000

Latest saved OI1,097Oct 23, 2026
Last change-5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $34.00 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. 1,1025510 2026-10-02: 948 OI2026-10-05: 950 OI2026-10-06: 950 OI2026-10-07: 951 OI2026-10-08: 951 OI2026-10-09: 970 OI2026-10-13: 970 OI2026-10-14: 970 OI2026-10-15: 1,090 OI2026-10-16: 1,090 OI2026-10-21: 1,102 OI2026-10-23: 1,097 OI Oct 02, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,097-5
Oct 21, 20261,102+12
Oct 16, 20261,0900
Oct 15, 20261,090+120
Oct 14, 20269700
Oct 13, 20269700
Oct 09, 2026970+19
Oct 08, 20269510
Oct 07, 2026951+1
Oct 06, 20269500
Oct 05, 2026950+2
Oct 02, 2026948No prior observation