MasTec is trading 4.2% down today at $349.89 as investors continue to react to the company's recently announced acquisition of The Superior Group and ongoing valuation reassessment. - On July 7, 2026, MasTec announced it would acquire electrical contractor The Superior Group for $1.65 billion (cash and stock), a move to expand its capabilities in data centers. - The acquisition, alongside MasTec's already premium valuation after strong Q1 2026 results and a record backlog, has led to profit-taking and concerns among market participants.