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Contract OI history

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Nov 20, 2026 EXPIRATION

UPB $2.50 Put

UPB261120P00002500

Latest saved OI135Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
UPB $2.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 135670 2026-10-08: 15 OI2026-10-09: 15 OI2026-10-13: 15 OI2026-10-14: 24 OI2026-10-16: 56 OI2026-10-21: 135 OI2026-10-23: 135 OI Oct 08, 2026Oct 23, 2026

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

UPB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1350
Oct 21, 2026135+79
Oct 16, 202656+32
Oct 14, 202624+9
Oct 13, 2026150
Oct 09, 2026150
Oct 08, 202615No prior observation