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Contract OI history

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Jan 21, 2028 EXPIRATION

STWD $18.00 Put

STWD280121P00018000

Latest saved OI372Oct 23, 2026
Last change+50vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STWD $18.00 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. 3721860 2026-10-02: 294 OI2026-10-05: 292 OI2026-10-06: 291 OI2026-10-07: 296 OI2026-10-08: 296 OI2026-10-09: 326 OI2026-10-13: 326 OI2026-10-14: 326 OI2026-10-15: 322 OI2026-10-16: 322 OI2026-10-21: 322 OI2026-10-23: 372 OI Oct 02, 2026Oct 23, 2026

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

STWD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026372+50
Oct 21, 2026Viewing3220
Oct 16, 20263220
Oct 15, 2026322-4
Oct 14, 20263260
Oct 13, 20263260
Oct 09, 2026326+30
Oct 08, 20262960
Oct 07, 2026296+5
Oct 06, 2026291-1
Oct 05, 2026292-2
Oct 02, 2026294No prior observation