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Contract OI history

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Feb 19, 2027 EXPIRATION

CIA $2.50 Put

CIA270219P00002500

Latest saved OI1,405Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIA $2.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,4087040 2026-10-02: 1,408 OI2026-10-05: 1,408 OI2026-10-06: 1,408 OI2026-10-07: 1,408 OI2026-10-08: 1,405 OI2026-10-09: 1,405 OI2026-10-13: 1,405 OI2026-10-14: 1,405 OI2026-10-16: 1,405 OI2026-10-20: 1,405 OI2026-10-23: 1,405 OI Oct 02, 2026Oct 23, 2026

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

CIA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,4050
Oct 20, 20261,4050
Oct 16, 20261,4050
Oct 14, 20261,4050
Oct 13, 20261,4050
Oct 09, 20261,4050
Oct 08, 20261,405-3
Oct 07, 20261,4080
Oct 06, 20261,4080
Oct 05, 20261,4080
Oct 02, 20261,408No prior observation