(Updates with recent stock movement in headline and first paragraph.)

Vistra's (VST) shares were down 1.6% in Friday trading after the company reported Q2 results that fell short of Wall Street expectations.

The company reported Q2 net income of $305 million, compared with $327 million a year earlier.

Analysts surveyed by FactSet expected $556.3 million.

Operating revenue for the quarter ended June 30 was $4.02 billion, compared with $4.25 billion a year earlier.

Analysts surveyed by FactSet expected $5.46 billion.

Price: 139.96, Change: -1.45, Percent Change: -1.03