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Contract OI history

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May 21, 2027 EXPIRATION

BULL $10.00 Put

BULL270521P00010000

Latest saved OI23Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BULL $10.00 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. 26130 2026-10-09: 17 OI2026-10-13: 17 OI2026-10-14: 17 OI2026-10-15: 25 OI2026-10-16: 25 OI2026-10-21: 26 OI2026-10-23: 23 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, 2026Viewing23-3
Oct 21, 202626+1
Oct 16, 2026250
Oct 15, 202625+8
Oct 14, 2026170
Oct 13, 2026170
Oct 09, 202617No prior observation