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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $340.00 Put

CIEN261120P00340000

Latest saved OI193Oct 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 $340.00 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. 193960 2026-10-02: 10 OI2026-10-05: 16 OI2026-10-06: 29 OI2026-10-07: 28 OI2026-10-08: 28 OI2026-10-09: 42 OI2026-10-13: 76 OI2026-10-14: 76 OI2026-10-15: 177 OI2026-10-16: 184 OI2026-10-21: 193 OI2026-10-23: 193 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, 2026Viewing1930
Oct 21, 2026193+9
Oct 16, 2026184+7
Oct 15, 2026177+101
Oct 14, 2026760
Oct 13, 202676+34
Oct 09, 202642+14
Oct 08, 2026280
Oct 07, 202628-1
Oct 06, 202629+13
Oct 05, 202616+6
Oct 02, 202610No prior observation