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Contract OI history

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Dec 18, 2026 EXPIRATION

ALHC $12.50 Put

ALHC261218P00012500

Latest saved OI112Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALHC $12.50 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. 112560 2026-10-09: 111 OI2026-10-13: 112 OI2026-10-14: 112 OI2026-10-15: 112 OI2026-10-16: 112 OI2026-10-21: 112 OI2026-10-23: 112 OI Oct 09, 2026Oct 23, 2026

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

ALHC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1120
Oct 21, 20261120
Oct 16, 20261120
Oct 15, 20261120
Oct 14, 20261120
Oct 13, 2026112+1
Oct 09, 2026111No prior observation