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Contract OI history

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Dec 18, 2026 EXPIRATION

INSW $80.00 Put

INSW261218P00080000

Latest saved OI321Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
INSW $80.00 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. 3441720 2026-10-02: 344 OI2026-10-05: 344 OI2026-10-06: 344 OI2026-10-07: 344 OI2026-10-08: 344 OI2026-10-09: 344 OI2026-10-13: 305 OI2026-10-14: 305 OI2026-10-15: 305 OI2026-10-16: 305 OI2026-10-21: 310 OI2026-10-23: 321 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

INSW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing321+11
Oct 21, 2026310+5
Oct 16, 20263050
Oct 15, 20263050
Oct 14, 20263050
Oct 13, 2026305-39
Oct 09, 20263440
Oct 08, 20263440
Oct 07, 20263440
Oct 06, 20263440
Oct 05, 20263440
Oct 02, 2026344No prior observation