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Contract OI history

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Jan 21, 2028 EXPIRATION

BA $220.00 Put

BA280121P00220000

Latest saved OI516Oct 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
BA $220.00 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. 5642820 2026-10-02: 561 OI2026-10-05: 561 OI2026-10-06: 563 OI2026-10-07: 563 OI2026-10-08: 563 OI2026-10-09: 564 OI2026-10-13: 514 OI2026-10-14: 514 OI2026-10-15: 514 OI2026-10-16: 514 OI2026-10-21: 511 OI2026-10-23: 516 OI Oct 02, 2026Oct 23, 2026

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

BA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing516+5
Oct 21, 2026511-3
Oct 16, 20265140
Oct 15, 20265140
Oct 14, 20265140
Oct 13, 2026514-50
Oct 09, 2026564+1
Oct 08, 20265630
Oct 07, 20265630
Oct 06, 2026563+2
Oct 05, 20265610
Oct 02, 2026561No prior observation