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Contract OI history

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Oct 23, 2026 EXPIRATION

CIEN $320.00 Put

CIEN261023P00320000

Latest saved OI472Oct 23, 2026
Last change+334vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $320.00 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. 4722360 2026-10-02: 58 OI2026-10-05: 57 OI2026-10-06: 54 OI2026-10-07: 56 OI2026-10-08: 56 OI2026-10-09: 56 OI2026-10-13: 114 OI2026-10-14: 114 OI2026-10-15: 98 OI2026-10-16: 97 OI2026-10-21: 138 OI2026-10-23: 472 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, 2026Viewing472+334
Oct 21, 2026138+41
Oct 16, 202697-1
Oct 15, 202698-16
Oct 14, 20261140
Oct 13, 2026114+58
Oct 09, 2026560
Oct 08, 2026560
Oct 07, 202656+2
Oct 06, 202654-3
Oct 05, 202657-1
Oct 02, 202658No prior observation