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Contract OI history

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Jan 15, 2027 EXPIRATION

BAX $27.50 Call

BAX270115C00027500

Latest saved OI1,033Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAX $27.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0345170 2026-10-02: 1,034 OI2026-10-05: 1,034 OI2026-10-06: 1,034 OI2026-10-07: 1,034 OI2026-10-08: 1,034 OI2026-10-09: 1,034 OI2026-10-13: 1,031 OI2026-10-14: 1,033 OI2026-10-15: 1,033 OI2026-10-16: 1,033 OI2026-10-21: 1,033 OI2026-10-23: 1,033 OI Oct 02, 2026Oct 23, 2026

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

BAX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,0330
Oct 21, 20261,0330
Oct 16, 20261,0330
Oct 15, 20261,0330
Oct 14, 20261,033+2
Oct 13, 20261,031-3
Oct 09, 20261,0340
Oct 08, 20261,0340
Oct 07, 20261,0340
Oct 06, 20261,0340
Oct 05, 20261,0340
Oct 02, 20261,034No prior observation