TVTY - Portland General Electric Digital Turbine jump on index changes

Portland General Electric (NYSE:POR) has jumped 9% after hours Friday after news that it's moving into the S&P MidCap 400 index. It's taking a spot being vacated by Digital Turbine (NASDAQ:APPS), which is moving down to the SmallCap 600 as more representative of the small-cap market space. Digital Turbine is up 5.5% after hours. And the reason for Digital Turbine's move is the departure of Tivity Health (TVTY), which is leaving the SmallCap 600 as it's set to be acquired by Stone Point Capital. The index moves are effective prior to the open of trading on Wednesday, June 29.

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Portland General Electric, Digital Turbine jump on index changes