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Contract OI history

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Dec 18, 2026 EXPIRATION

DOW $27.50 Put

DOW261218P00027500

Latest saved OI1,344Oct 23, 2026
Last change+180vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DOW $27.50 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. 1,3446720 2026-10-02: 1,148 OI2026-10-05: 1,151 OI2026-10-06: 1,151 OI2026-10-07: 1,152 OI2026-10-08: 1,152 OI2026-10-09: 1,153 OI2026-10-13: 1,158 OI2026-10-14: 1,163 OI2026-10-15: 1,166 OI2026-10-16: 1,161 OI2026-10-21: 1,164 OI2026-10-23: 1,344 OI Oct 02, 2026Oct 23, 2026

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

DOW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,344+180
Oct 21, 20261,164+3
Oct 16, 20261,161-5
Oct 15, 20261,166+3
Oct 14, 20261,163+5
Oct 13, 20261,158+5
Oct 09, 20261,153+1
Oct 08, 20261,1520
Oct 07, 20261,152+1
Oct 06, 20261,1510
Oct 05, 20261,151+3
Oct 02, 20261,148No prior observation