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Contract OI history

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Dec 18, 2026 EXPIRATION

MAIR $30.00 Put

MAIR261218P00030000

Latest saved OI241Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MAIR $30.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2421210 2026-10-02: 242 OI2026-10-05: 242 OI2026-10-06: 242 OI2026-10-07: 242 OI2026-10-08: 242 OI2026-10-09: 242 OI2026-10-13: 242 OI2026-10-14: 242 OI2026-10-16: 242 OI2026-10-20: 242 OI2026-10-23: 241 OI Oct 02, 2026Oct 23, 2026

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

MAIR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing241-1
Oct 20, 20262420
Oct 16, 20262420
Oct 14, 20262420
Oct 13, 20262420
Oct 09, 20262420
Oct 08, 20262420
Oct 07, 20262420
Oct 06, 20262420
Oct 05, 20262420
Oct 02, 2026242No prior observation