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Contract OI history

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Jun 17, 2027 EXPIRATION

CIEN $240.00 Put

CIEN270617P00240000

Latest saved OI204Oct 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 $240.00 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. 2051020 2026-10-02: 187 OI2026-10-05: 199 OI2026-10-06: 199 OI2026-10-07: 199 OI2026-10-08: 199 OI2026-10-09: 199 OI2026-10-13: 205 OI2026-10-14: 205 OI2026-10-15: 204 OI2026-10-16: 204 OI2026-10-21: 204 OI2026-10-23: 204 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, 2026Viewing2040
Oct 21, 20262040
Oct 16, 20262040
Oct 15, 2026204-1
Oct 14, 20262050
Oct 13, 2026205+6
Oct 09, 20261990
Oct 08, 20261990
Oct 07, 20261990
Oct 06, 20261990
Oct 05, 2026199+12
Oct 02, 2026187No prior observation