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Contract OI history

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May 21, 2027 EXPIRATION

ALLO $500.00 Call

ALLO270521C00000500

Latest saved OI44Oct 20, 2026
Last change+2vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ALLO $500.00 call open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 44220 2026-10-08: 37 OI2026-10-09: 37 OI2026-10-13: 39 OI2026-10-14: 42 OI2026-10-16: 42 OI2026-10-20: 44 OI Oct 08, 2026Oct 20, 2026

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

ALLO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing44+2
Oct 16, 2026420
Oct 14, 202642+3
Oct 13, 202639+2
Oct 09, 2026370
Oct 08, 202637No prior observation