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Contract OI history

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Nov 20, 2026 EXPIRATION

CALM $65.00 Call

CALM261120C00065000

Latest saved OI1,661Oct 23, 2026
Last change+268vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CALM $65.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,6618300 2026-10-08: 262 OI2026-10-09: 333 OI2026-10-13: 400 OI2026-10-14: 412 OI2026-10-16: 442 OI2026-10-20: 1,393 OI2026-10-23: 1,661 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, 2026Viewing1,661+268
Oct 20, 20261,393+951
Oct 16, 2026442+30
Oct 14, 2026412+12
Oct 13, 2026400+67
Oct 09, 2026333+71
Oct 08, 2026262No prior observation