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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $310.00 Put

CIEN261120P00310000

Latest saved OI293Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $310.00 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. 3461730 2026-10-02: 324 OI2026-10-05: 334 OI2026-10-06: 323 OI2026-10-07: 323 OI2026-10-08: 323 OI2026-10-09: 325 OI2026-10-13: 346 OI2026-10-14: 346 OI2026-10-15: 289 OI2026-10-16: 288 OI2026-10-21: 294 OI2026-10-23: 293 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, 2026Viewing293-1
Oct 21, 2026294+6
Oct 16, 2026288-1
Oct 15, 2026289-57
Oct 14, 20263460
Oct 13, 2026346+21
Oct 09, 2026325+2
Oct 08, 20263230
Oct 07, 20263230
Oct 06, 2026323-11
Oct 05, 2026334+10
Oct 02, 2026324No prior observation