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Contract OI history

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Oct 23, 2026 EXPIRATION

CIEN $420.00 Put

CIEN261023P00420000

Latest saved OI0Oct 23, 2026
Last change-270vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $420.00 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. 3001500 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 13 OI2026-10-07: 70 OI2026-10-08: 70 OI2026-10-09: 300 OI2026-10-13: 297 OI2026-10-14: 297 OI2026-10-15: 297 OI2026-10-16: 297 OI2026-10-21: 270 OI2026-10-23: 0 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, 2026Viewing0-270
Oct 21, 2026270-27
Oct 16, 20262970
Oct 15, 20262970
Oct 14, 20262970
Oct 13, 2026297-3
Oct 09, 2026300+230
Oct 08, 2026700
Oct 07, 202670+57
Oct 06, 202613+13
Oct 05, 202600
Oct 02, 20260No prior observation