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Contract OI history

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Jan 21, 2028 EXPIRATION

ALAB $55.00 Put

ALAB280121P00055000

Latest saved OI250Oct 23, 2026
Last change+9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALAB $55.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2501250 2026-10-09: 231 OI2026-10-13: 241 OI2026-10-14: 241 OI2026-10-15: 241 OI2026-10-16: 241 OI2026-10-21: 241 OI2026-10-23: 250 OI Oct 09, 2026Oct 23, 2026

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

ALAB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing250+9
Oct 21, 20262410
Oct 16, 20262410
Oct 15, 20262410
Oct 14, 20262410
Oct 13, 2026241+10
Oct 09, 2026231No prior observation