OITracker Cboe delayed data

Contract OI history

Back to CIEN

Dec 18, 2026 EXPIRATION

CIEN $370.00 Put

CIEN261218P00370000

Latest saved OI188Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $370.00 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. 188940 2026-10-02: 126 OI2026-10-05: 131 OI2026-10-06: 134 OI2026-10-07: 136 OI2026-10-08: 136 OI2026-10-09: 136 OI2026-10-13: 150 OI2026-10-14: 150 OI2026-10-15: 149 OI2026-10-16: 159 OI2026-10-21: 178 OI2026-10-23: 188 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, 2026Viewing188+10
Oct 21, 2026178+19
Oct 16, 2026159+10
Oct 15, 2026149-1
Oct 14, 20261500
Oct 13, 2026150+14
Oct 09, 20261360
Oct 08, 20261360
Oct 07, 2026136+2
Oct 06, 2026134+3
Oct 05, 2026131+5
Oct 02, 2026126No prior observation