Alphabet, the parent company of Google, has been added to the Dow Jones Industrial Average, one of Wall Street's most closely watched stock indexes.

The milestone caps a remarkable stretch for the stock. According to The Motley Fool, shares of Alphabet (trading under the tickers GOOGL and GOOG) have gained more than 300% since the artificial intelligence boom began in earnest in January 2023.

That rise is notable because, as the report published on Yahoo Finance notes, investors initially feared the opposite. Early in the AI wave, many worried the technology would disrupt Alphabet's core search business rather than strengthen it. Those fears have given way to a very different market verdict over the past few years.

Joining the Dow is more than a symbolic honor. The index is made up of a select group of large, established American companies, and membership signals that a firm has become a bellwether for the broader economy. It also means Alphabet's day-to-day performance will now help move one of the benchmarks that ordinary investors and retirement funds track.

The Motley Fool frames the addition around a historical pattern, suggesting that past examples point to what may happen next for the stock, though the sources here do not spell out the specific numbers behind that prediction.

Why it matters: Alphabet's leap into the Dow is a concrete sign that AI has reshaped which companies are seen as central to the U.S. economy, turning an early source of investor anxiety into one of the market's biggest winners.