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Contract OI history

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Jan 21, 2028 EXPIRATION

BULL $12.50 Put

BULL280121P00012500

Latest saved OI997Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BULL $12.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 9974980 2026-10-09: 990 OI2026-10-13: 991 OI2026-10-14: 991 OI2026-10-15: 991 OI2026-10-16: 991 OI2026-10-21: 997 OI2026-10-23: 997 OI Oct 09, 2026Oct 23, 2026

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

BULL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing9970
Oct 21, 2026997+6
Oct 16, 20269910
Oct 15, 20269910
Oct 14, 20269910
Oct 13, 2026991+1
Oct 09, 2026990No prior observation