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Contract OI history

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Nov 06, 2026 EXPIRATION

ACHR $5.50 Put

ACHR261106P00005500

Latest saved OI324Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $5.50 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. 4402200 2026-10-02: 104 OI2026-10-05: 429 OI2026-10-06: 440 OI2026-10-07: 434 OI2026-10-08: 434 OI2026-10-09: 306 OI2026-10-13: 312 OI2026-10-14: 312 OI2026-10-15: 312 OI2026-10-16: 316 OI2026-10-21: 325 OI2026-10-23: 324 OI Oct 02, 2026Oct 23, 2026

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

ACHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing324-1
Oct 21, 2026325+9
Oct 16, 2026316+4
Oct 15, 20263120
Oct 14, 20263120
Oct 13, 2026312+6
Oct 09, 2026306-128
Oct 08, 20264340
Oct 07, 2026434-6
Oct 06, 2026440+11
Oct 05, 2026429+325
Oct 02, 2026104No prior observation