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Contract OI history

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Feb 19, 2027 EXPIRATION

CALM $75.00 Put

CALM270219P00075000

Latest saved OI109Oct 23, 2026
Last change-7vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CALM $75.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 116580 2026-10-08: 115 OI2026-10-09: 115 OI2026-10-13: 116 OI2026-10-14: 116 OI2026-10-16: 116 OI2026-10-20: 116 OI2026-10-23: 109 OI Oct 08, 2026Oct 23, 2026

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

CALM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing109-7
Oct 20, 20261160
Oct 16, 20261160
Oct 14, 20261160
Oct 13, 2026116+1
Oct 09, 20261150
Oct 08, 2026115No prior observation