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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $370.00 Put

CIEN261120P00370000

Latest saved OI253Oct 23, 2026
Last change0vs 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. 2551270 2026-10-02: 20 OI2026-10-05: 21 OI2026-10-06: 42 OI2026-10-07: 50 OI2026-10-08: 50 OI2026-10-09: 86 OI2026-10-13: 241 OI2026-10-14: 241 OI2026-10-15: 254 OI2026-10-16: 255 OI2026-10-21: 253 OI2026-10-23: 253 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, 2026Viewing2530
Oct 21, 2026253-2
Oct 16, 2026255+1
Oct 15, 2026254+13
Oct 14, 20262410
Oct 13, 2026241+155
Oct 09, 202686+36
Oct 08, 2026500
Oct 07, 202650+8
Oct 06, 202642+21
Oct 05, 202621+1
Oct 02, 202620No prior observation