YAHOO FINANCE - Match Group is getting added to the broader stock market index, and its shares are soaring 9% in response during extended-hours trading. The changes in the S&P 500 are part of the index's quarterly shufflings based on the latest market activity. In order for Match to keep their spot, it must maintain a minimum market cap of $13.1B. Match shouldn't have any trouble as it currently boasts a market cap of $41B.