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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $300.00 Put

CIEN261120P00300000

Latest saved OI163Oct 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 $300.00 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. 167830 2026-10-02: 120 OI2026-10-05: 150 OI2026-10-06: 157 OI2026-10-07: 155 OI2026-10-08: 155 OI2026-10-09: 112 OI2026-10-13: 155 OI2026-10-14: 155 OI2026-10-15: 159 OI2026-10-16: 158 OI2026-10-21: 167 OI2026-10-23: 163 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, 2026Viewing163-4
Oct 21, 2026167+9
Oct 16, 2026158-1
Oct 15, 2026159+4
Oct 14, 20261550
Oct 13, 2026155+43
Oct 09, 2026112-43
Oct 08, 20261550
Oct 07, 2026155-2
Oct 06, 2026157+7
Oct 05, 2026150+30
Oct 02, 2026120No prior observation