Glossary Master the language of traders and navigate the financial markets with confidence! Traders GlossaryAll | A B C D E F G H I J K L M N O P Q R S T U V W X Y Z YYARDA billion units.YIELDThe percentage return from an investment.YOYAbbreviation for year over year.YUANThe yuan is the base unit of currency in China. The renminbi is the name of the currency in China, where the Yuan is the base unit.