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Contract OI history

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Nov 20, 2026 EXPIRATION

CALY $12.50 Put

CALY261120P00012500

Latest saved OI234Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CALY $12.50 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. 2341170 2026-10-02: 227 OI2026-10-05: 227 OI2026-10-06: 227 OI2026-10-07: 227 OI2026-10-08: 229 OI2026-10-09: 229 OI2026-10-13: 229 OI2026-10-14: 229 OI2026-10-16: 229 OI2026-10-21: 232 OI2026-10-23: 234 OI Oct 02, 2026Oct 23, 2026

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

CALY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing234+2
Oct 21, 2026232+3
Oct 16, 20262290
Oct 14, 20262290
Oct 13, 20262290
Oct 09, 20262290
Oct 08, 2026229+2
Oct 07, 20262270
Oct 06, 20262270
Oct 05, 20262270
Oct 02, 2026227No prior observation