Read This: Twitter Bots Changed Tesla’s Tides

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In early November 2013, the news wasn’t looking great for Tesla. A series of reports had documented instances of Tesla Model S sedans catching on fire, causing the electric carmaker’s share price to tumble.

Then, on the evening of Nov. 7, within a span of 75 minutes, eight automated Twitter accounts came to life and began publishing positive sentiments about Tesla. Over the next seven years, they would post more than 30,000 such tweets.

With more than 500 million tweets sent per day across the network, that output represents a drop in the ocean. But preliminary research from David A. Kirsch, a professor at the University of Maryland’s Robert H. Smith School of Business, concludes that activity of this sort by so-called bots has played a significant part in the “stock of the future” narrative that has propelled Tesla’s market value to altitudes loftier than any traditional financial analysis could justify.