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Contract OI history

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May 21, 2027 EXPIRATION

BA $170.00 Put

BA270521P00170000

Latest saved OI362Oct 23, 2026
Last change+39vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BA $170.00 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. 3621810 2026-10-02: 217 OI2026-10-05: 217 OI2026-10-06: 232 OI2026-10-07: 240 OI2026-10-08: 240 OI2026-10-09: 240 OI2026-10-13: 240 OI2026-10-14: 240 OI2026-10-15: 240 OI2026-10-16: 240 OI2026-10-21: 323 OI2026-10-23: 362 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, 2026Viewing362+39
Oct 21, 2026323+83
Oct 16, 20262400
Oct 15, 20262400
Oct 14, 20262400
Oct 13, 20262400
Oct 09, 20262400
Oct 08, 20262400
Oct 07, 2026240+8
Oct 06, 2026232+15
Oct 05, 20262170
Oct 02, 2026217No prior observation