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Contract OI history

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Dec 18, 2026 EXPIRATION

HWM $230.00 Put

HWM261218P00230000

Latest saved OI347Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HWM $230.00 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. 3531760 2026-10-02: 342 OI2026-10-05: 342 OI2026-10-06: 344 OI2026-10-07: 348 OI2026-10-08: 348 OI2026-10-09: 349 OI2026-10-13: 349 OI2026-10-14: 349 OI2026-10-15: 349 OI2026-10-16: 350 OI2026-10-21: 353 OI2026-10-23: 347 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, 2026Viewing347-6
Oct 21, 2026353+3
Oct 16, 2026350+1
Oct 15, 20263490
Oct 14, 20263490
Oct 13, 20263490
Oct 09, 2026349+1
Oct 08, 20263480
Oct 07, 2026348+4
Oct 06, 2026344+2
Oct 05, 20263420
Oct 02, 2026342No prior observation