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Contract OI history

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Jun 17, 2027 EXPIRATION

CIEN $400.00 Put

CIEN270617P00400000

Latest saved OI56Oct 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 $400.00 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. 60300 2026-10-02: 60 OI2026-10-05: 59 OI2026-10-06: 59 OI2026-10-07: 59 OI2026-10-08: 59 OI2026-10-09: 58 OI2026-10-13: 58 OI2026-10-14: 58 OI2026-10-15: 58 OI2026-10-16: 55 OI2026-10-21: 56 OI2026-10-23: 56 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, 2026Viewing560
Oct 21, 202656+1
Oct 16, 202655-3
Oct 15, 2026580
Oct 14, 2026580
Oct 13, 2026580
Oct 09, 202658-1
Oct 08, 2026590
Oct 07, 2026590
Oct 06, 2026590
Oct 05, 202659-1
Oct 02, 202660No prior observation