Telegraph machine ticker

The telegraph ticker, also known as a stock ticker machine, was crucial for transmitting financial information and news in the 19th century.

About this subject

The telegraph ticker, or stock ticker machine, is a device that prints telegraph messages onto a continuous strip of paper. Invented by Edward A. Calahan in 1867, it was designed to transmit stock quotes over telegraph lines. Before its invention, quotes were delivered by messengers, causing delays. The ticker enabled real-time updates, revolutionizing the financial market.

The machine operated by connecting to a telegraph network. Incoming electrical signals triggered a mechanism that printed letters and numbers on a narrow paper tape, known as ticker tape. Each character was printed in sequence, forming a continuous message. Telegraph operators sent quotes from a central office to multiple tickers simultaneously, allowing brokers and investors to monitor the market in real time.

The cultural impact of the ticker extends beyond finance. Iconic ticker-tape parades in New York, such as the one celebrating the end of World War II, used paper tape thrown from windows. The term 'ticker symbol' (stock symbol) derives from this device. Companies like Dow Jones & Company began using tickers to disseminate news, giving rise to modern financial journalism. With the advent of electronic systems in the 1970s, mechanical tickers were gradually replaced, but their legacy endures.

Frequently Asked Questions

How did the telegraph ticker work?

The ticker received electrical signals from the telegraph network and triggered a mechanism that printed characters on a continuous paper tape, called ticker tape. Each character was printed in sequence, forming messages such as stock quotes or news.

What was the impact of the ticker on the financial market?

The ticker allowed quotes to be transmitted in real time, eliminating delays from messengers. This sped up trading and gave rise to modern financial information systems, such as Dow Jones.

What is ticker tape and why is it famous?

Ticker tape is the narrow strip of paper on which the ticker printed messages. It became famous for being used in celebratory parades, such as the one at the end of World War II, where it was thrown from building windows.