upsideglossary / UPSIDE upside. Securities.1. An upward movement in stock prices.2. The potential of an upward movement in stock prices. Cf. DOWNSIDE. 词条贡献者 资深译员Barbara,毕业于国内顶尖的高级翻译学院,擅长翻译各类与兼并收购相关的法律文件。