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Contract OI history

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Dec 18, 2026 EXPIRATION

SMCI $21.00 Put

SMCI261218P00021000

Latest saved OI1,708Oct 23, 2026
Last change+31vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SMCI $21.00 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. 1,7088540 2026-10-09: 1,613 OI2026-10-13: 1,624 OI2026-10-14: 1,624 OI2026-10-15: 1,664 OI2026-10-16: 1,664 OI2026-10-21: 1,677 OI2026-10-23: 1,708 OI Oct 09, 2026Oct 23, 2026

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

SMCI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,708+31
Oct 21, 20261,677+13
Oct 16, 20261,6640
Oct 15, 20261,664+40
Oct 14, 20261,6240
Oct 13, 20261,624+11
Oct 09, 20261,613No prior observation