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Contract OI history

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Nov 20, 2026 EXPIRATION

CAL $12.50 Call

CAL261120C00012500

Latest saved OI443Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAL $12.50 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4432210 2026-10-02: 241 OI2026-10-05: 241 OI2026-10-06: 241 OI2026-10-07: 241 OI2026-10-08: 241 OI2026-10-09: 241 OI2026-10-13: 241 OI2026-10-14: 241 OI2026-10-16: 441 OI2026-10-20: 443 OI2026-10-23: 443 OI Oct 02, 2026Oct 23, 2026

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

CAL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4430
Oct 20, 2026443+2
Oct 16, 2026441+200
Oct 14, 20262410
Oct 13, 20262410
Oct 09, 20262410
Oct 08, 20262410
Oct 07, 20262410
Oct 06, 20262410
Oct 05, 20262410
Oct 02, 2026241No prior observation