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Contract OI history

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May 21, 2027 EXPIRATION

OBDC $12.50 Put

OBDC270521P00012500

Latest saved OI1,100Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 06, 2026 onwards
Daily open interest Hover a point for its date and OI
OBDC $12.50 put open interest history 8 saved observations from 2026-10-06 to 2026-10-23. Exact values and changes are listed in the table below. 1,1005500 2026-10-06: 0 OI2026-10-07: 400 OI2026-10-09: 400 OI2026-10-13: 400 OI2026-10-14: 400 OI2026-10-16: 400 OI2026-10-20: 1,100 OI2026-10-23: 1,100 OI Oct 06, 2026Oct 23, 2026

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

OBDC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,1000
Oct 20, 20261,100+700
Oct 16, 20264000
Oct 14, 20264000
Oct 13, 20264000
Oct 09, 20264000
Oct 07, 2026400+400
Oct 06, 20260No prior observation