Index inclusion creates immediate buying pressure as passive funds purchase shares to match the S&P 500 composition.

Block jumped after being tapped to join the S&P 500, a move that sets the stage for index investors to buy the stock.

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies ...

Block (NYSE: XYZ) has surged by over 7% this morning after the S&P Dow Jones Indices announced that this company is joining ...

Block (XYZ) stock surged as much as 8.9% in Monday morning trading after S&P Dow Jones Indices said it will add the Cash App ...

Opendoor Technologies rose 25% in premarket trading after a social media post by Carvana spotter Eric Jackson. Tesla rose ...

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies ...

Block shares surge after joining S&P 500, as fintech firm gains institutional traction and bullish forecasts from Wall Street ...

Block shares surged Monday as the digital payments provider prepares to join the S&P 500 Index starting Wednesday.

Block (XYZ) shares surged close to 10% in extended trading Friday after S&P Dow Jones Indices said the digital payments ...

The S&P 500 is getting another shakeup, this time with the addition of Block Inc.