Reddit is joining the S&P 500. Here’s why that matters, and why the stock price is surging on the news

The social media company will soon become part of one of the most closely watched stock indices. It’s more than just a nice gesture.

Shares in Reddit, Inc. (NYSE: RDDT) are surging in premarket trading this morning after S&P Dow Jones Indices announced that the social media platform will join........

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