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Contract OI history

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Mar 19, 2027 EXPIRATION

B $35.00 Call

B270319C00035000

Latest saved OI242Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $35.00 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. 2421210 2026-10-02: 239 OI2026-10-05: 239 OI2026-10-06: 239 OI2026-10-07: 239 OI2026-10-08: 239 OI2026-10-09: 239 OI2026-10-13: 239 OI2026-10-14: 239 OI2026-10-15: 242 OI2026-10-16: 242 OI2026-10-21: 242 OI2026-10-23: 242 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, 2026Viewing2420
Oct 21, 20262420
Oct 16, 20262420
Oct 15, 2026242+3
Oct 14, 20262390
Oct 13, 20262390
Oct 09, 20262390
Oct 08, 20262390
Oct 07, 20262390
Oct 06, 20262390
Oct 05, 20262390
Oct 02, 2026239No prior observation