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Contract OI history

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Dec 18, 2026 EXPIRATION

CIEN $210.00 Put

CIEN261218P00210000

Latest saved OI45Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $210.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 47230 2026-10-02: 46 OI2026-10-05: 46 OI2026-10-06: 47 OI2026-10-07: 47 OI2026-10-08: 47 OI2026-10-09: 47 OI2026-10-13: 47 OI2026-10-14: 47 OI2026-10-15: 47 OI2026-10-16: 47 OI2026-10-21: 45 OI2026-10-23: 45 OI Oct 02, 2026Oct 23, 2026

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

CIEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing450
Oct 21, 202645-2
Oct 16, 2026470
Oct 15, 2026470
Oct 14, 2026470
Oct 13, 2026470
Oct 09, 2026470
Oct 08, 2026470
Oct 07, 2026470
Oct 06, 202647+1
Oct 05, 2026460
Oct 02, 202646No prior observation