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Contract OI history

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May 21, 2027 EXPIRATION

SMCI $28.00 Put

SMCI270521P00028000

Latest saved OI255Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SMCI $28.00 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. 2551270 2026-10-09: 143 OI2026-10-13: 195 OI2026-10-14: 195 OI2026-10-15: 197 OI2026-10-16: 199 OI2026-10-21: 250 OI2026-10-23: 255 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, 2026Viewing255+5
Oct 21, 2026250+51
Oct 16, 2026199+2
Oct 15, 2026197+2
Oct 14, 20261950
Oct 13, 2026195+52
Oct 09, 2026143No prior observation