Tecnoglass (TGLS) shares ended the last trading session 21.6% higher at $49.89. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock's 23.7% loss over the past four weeks. This architectural glass maker is expected to post quarterly earnings of $0.81 per share in its upcoming report, which represents a year-over-year change of -27.7%. Revenues are expected to be $219.51 million, down 2.6% from the year-ago quarter. For Te ...