In the UK this is when a holder sells late at night on the end of the financial year. They buy it back the next morning to keep the portfolio going. It reduces taxes.

• UNSOLICITED PROPOSAL
• UNSOUGHT GOOD
• UNSOUND MIND
• UNSTABLE
• UNSTABLE REACTIVE
• UNSTRUCTURED INTERVIEW
• UNSTUFFING OF CONTAINER
• UNSUBSIDIZED LOAN
• UNSYSTEMIC RISK
• UNTHRIFT
• UNTIL
• UNUS NULLUS RULE,THE
• UNUSUAL BUT NOT EXTRAORDINARY ITEM
• UNWHOLESOME FOOD
• UNWRITTEN LAW
• UNWRITTEN LAW
• UP AND IN OPTION
• UP AND OUT OPTION
• UPFRONT COLLATERAL
• UP-FRONT MORTGAGE INSURANCE PREMIUM
• UPGRADE
• UPHOLD
• UPLIFTED HAND
• UPLINE
• UPLINK