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Contract OI history

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Oct 23, 2026 EXPIRATION

CIEN $275.00 Put

CIEN261023P00275000

Latest saved OI425Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $275.00 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. 4252120 2026-10-02: 319 OI2026-10-05: 324 OI2026-10-06: 324 OI2026-10-07: 369 OI2026-10-08: 369 OI2026-10-09: 365 OI2026-10-13: 379 OI2026-10-14: 379 OI2026-10-15: 388 OI2026-10-16: 397 OI2026-10-21: 411 OI2026-10-23: 425 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, 2026Viewing425+14
Oct 21, 2026411+14
Oct 16, 2026397+9
Oct 15, 2026388+9
Oct 14, 20263790
Oct 13, 2026379+14
Oct 09, 2026365-4
Oct 08, 20263690
Oct 07, 2026369+45
Oct 06, 20263240
Oct 05, 2026324+5
Oct 02, 2026319No prior observation