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Contract OI history

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Mar 19, 2027 EXPIRATION

MAIR $25.00 Put

MAIR270319P00025000

Latest saved OI235Oct 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 $25.00 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. 2351170 2026-10-02: 234 OI2026-10-05: 234 OI2026-10-06: 234 OI2026-10-07: 234 OI2026-10-08: 234 OI2026-10-09: 234 OI2026-10-13: 234 OI2026-10-14: 234 OI2026-10-16: 234 OI2026-10-20: 234 OI2026-10-23: 235 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, 2026Viewing235+1
Oct 20, 20262340
Oct 16, 20262340
Oct 14, 20262340
Oct 13, 20262340
Oct 09, 20262340
Oct 08, 20262340
Oct 07, 20262340
Oct 06, 20262340
Oct 05, 20262340
Oct 02, 2026234No prior observation