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Contract OI history

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Dec 18, 2026 EXPIRATION

HWM $220.00 Put

HWM261218P00220000

Latest saved OI728Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HWM $220.00 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. 7303650 2026-10-02: 729 OI2026-10-05: 729 OI2026-10-06: 730 OI2026-10-07: 729 OI2026-10-08: 729 OI2026-10-09: 727 OI2026-10-13: 727 OI2026-10-14: 727 OI2026-10-15: 720 OI2026-10-16: 720 OI2026-10-21: 728 OI2026-10-23: 728 OI Oct 02, 2026Oct 23, 2026

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

HWM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7280
Oct 21, 2026728+8
Oct 16, 20267200
Oct 15, 2026720-7
Oct 14, 20267270
Oct 13, 20267270
Oct 09, 2026727-2
Oct 08, 20267290
Oct 07, 2026729-1
Oct 06, 2026730+1
Oct 05, 20267290
Oct 02, 2026729No prior observation