the Big Board
noun US uk/ˌbɪɡ ˈbɔːd/ us/ˌbɪɡ ˈbɔːrd/
纽约证券交易所（the New York Stock Exchange的非正式说法）
informal for the New York Stock Exchange: a place in New York where shares in companies are bought and sold, or the people whose job is to do this buying or selling
In Big Board composite trading yesterday, the company's shares closed at $44.50. 昨天在纽约证券交易所综合交易中，该公司的股票以44.5美元收盘。