← All Glossary Ultra-Short Bond Fund A fixed-income fund investing in very short-maturity bonds (under one year), offering higher yields than money market funds with slightly more price volatility. Underlying Asset The financial asset upon which a derivative's price is based — such as a stock for options or a currency for forex — that the derivative references. Unit Investment Trust (UIT) An SEC-registered investment company that buys a fixed portfolio of securities and holds them until termination, offering predictable income with no active management. Unrealized Gain/Loss The paper profit or loss on an investment still held, reflecting the difference between current market value and purchase price but not yet taxable. Upside/Downside Ratio A technical indicator comparing the number of advancing to declining stocks, measuring market breadth and investor sentiment.
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