Tetra Tech, Inc. (NASDAQ:TTEK) reported better-than-expected second-quarter financial results after the closing bell on Wednesday. Tetra Tech posted adjusted earnings of $1.42 per share, beating market estimates of $1.29 per share. The company's quarterly sales came in $1.05 billion versus expectations of $1.03 billion, according to data from Benzinga Pro. Dan Batrack, Chairman and CEO, commented, “Tetra Tech continued our strong performance through the second quarter, including the expansion of our margins in GSG by 170 basis points and CIG by 320 basis ...