When was stock ticker invented

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Tools What links here. Related changes. Printable version. Permanent link. Page information. Browse properties. The ticker was the brainchild of Edward Calahan, who configured a telegraph machine to print stock quotes on streams of paper tape the same paper tape later used in ticker-tape parades.

The ticker, which caught on quickly with investors, got its name from the sound its type wheel made. The last mechanical stock ticker debuted in and was eventually replaced by computerized tickers with electronic displays. A common misconception is that there is one ticker used by everyone. In fact, private data companies run a variety of tickers; each provides information about a select mix of stocks.

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View manifest View in Mirador. Description Brief Until the decade of the s, when traders adopted the Internet, tickers provided vital stock market information to businesses and news organizations. The company submitted this ticker to the U. Patent Office during the process leading to the issue of patent number , in Nominate this object for photography.

The weakness of mechanical stock tickers showed itself during the Crash of 29, when prices were changing so quickly, that the tickers couldn't keep up. An order to sell now to cut your losses, would not be guaranteed to execute at the price that you saw on your ticker tape machine because that price could be dramatically different a few seconds later.

It would most likely execute a lot lower than that, resulting in a bigger loss than expected. Even computerized quotes can't be guaranteed to be accurate for very long, but the information does reach you sooner than if it were transmitted over telegraph lines by a human operator at the other end, giving you a little more time to decide what to do.

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