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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $350.00 Put

CIEN261120P00350000

Latest saved OI271Oct 23, 2026
Last change+49vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $350.00 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. 2711350 2026-10-02: 52 OI2026-10-05: 52 OI2026-10-06: 133 OI2026-10-07: 132 OI2026-10-08: 132 OI2026-10-09: 166 OI2026-10-13: 209 OI2026-10-14: 209 OI2026-10-15: 192 OI2026-10-16: 204 OI2026-10-21: 222 OI2026-10-23: 271 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, 2026Viewing271+49
Oct 21, 2026222+18
Oct 16, 2026204+12
Oct 15, 2026192-17
Oct 14, 20262090
Oct 13, 2026209+43
Oct 09, 2026166+34
Oct 08, 20261320
Oct 07, 2026132-1
Oct 06, 2026133+81
Oct 05, 2026520
Oct 02, 202652No prior observation