ticker symbol
A unique abbreviation used to identify publicly traded shares of a particular stock on a particular stock market. Used in financial contexts.
Apple's ticker symbol is AAPL.
証券コード is a broader term for a securities identification code, while ティッカーシンボル specifically refers to the short alphabetic symbol used in stock tickers.
Variant with interpunct; less common but seen in some texts.
Borrowed from English 'ticker symbol'.