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Contract OI history

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Oct 23, 2026 EXPIRATION

BILL $43.00 Put

BILL261023P00043000

Latest saved OI1,073Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BILL $43.00 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. 1,0735360 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 3 OI2026-10-07: 1,002 OI2026-10-08: 1,002 OI2026-10-09: 1,002 OI2026-10-13: 1,002 OI2026-10-14: 1,002 OI2026-10-15: 1,002 OI2026-10-16: 1,002 OI2026-10-21: 1,073 OI2026-10-23: 1,073 OI Oct 02, 2026Oct 23, 2026

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

BILL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,0730
Oct 21, 20261,073+71
Oct 16, 20261,0020
Oct 15, 20261,0020
Oct 14, 20261,0020
Oct 13, 20261,0020
Oct 09, 20261,0020
Oct 08, 20261,0020
Oct 07, 20261,002+999
Oct 06, 202630
Oct 05, 202630
Oct 02, 20263No prior observation