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Contract OI history

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Dec 18, 2026 EXPIRATION

CIEN $280.00 Put

CIEN261218P00280000

Latest saved OI296Oct 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 $280.00 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. 3091540 2026-10-02: 309 OI2026-10-05: 295 OI2026-10-06: 279 OI2026-10-07: 278 OI2026-10-08: 278 OI2026-10-09: 279 OI2026-10-13: 280 OI2026-10-14: 280 OI2026-10-15: 282 OI2026-10-16: 296 OI2026-10-21: 297 OI2026-10-23: 296 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, 2026Viewing296-1
Oct 21, 2026297+1
Oct 16, 2026296+14
Oct 15, 2026282+2
Oct 14, 20262800
Oct 13, 2026280+1
Oct 09, 2026279+1
Oct 08, 20262780
Oct 07, 2026278-1
Oct 06, 2026279-16
Oct 05, 2026295-14
Oct 02, 2026309No prior observation