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Contract OI history

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Dec 18, 2026 EXPIRATION

CIEN $250.00 Put

CIEN261218P00250000

Latest saved OI248Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $250.00 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. 2611300 2026-10-02: 261 OI2026-10-05: 259 OI2026-10-06: 242 OI2026-10-07: 241 OI2026-10-08: 241 OI2026-10-09: 236 OI2026-10-13: 237 OI2026-10-14: 237 OI2026-10-15: 238 OI2026-10-16: 238 OI2026-10-21: 244 OI2026-10-23: 248 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, 2026Viewing248+4
Oct 21, 2026244+6
Oct 16, 20262380
Oct 15, 2026238+1
Oct 14, 20262370
Oct 13, 2026237+1
Oct 09, 2026236-5
Oct 08, 20262410
Oct 07, 2026241-1
Oct 06, 2026242-17
Oct 05, 2026259-2
Oct 02, 2026261No prior observation