stock ticker

plural stock tickers · alternative stock-ticker · alternative stockticker

1. A device, used primarily in the 20th century, which printed prices and volumes of stock trades on paper tape as the data became available.

   ... whose instruments are located directly on the floor of the Exchange, who transmit them instantly to the quotation companies, and in a few seconds the prices are carried by the stock-ticker into the brokers' office, the banks, banking houses...

   1893, Clarence W. Barron, Joseph Gregory Martin, The Boston Stock Exchange

2. Any device or display showing price and volumes of stock trades as the data become available.