Shares of Lumentum (LITE) are under pressure on Tuesday after the company agreed to buy laser maker Coherent (COHR) for $5. 7B… To see the rest of the story go to thefly.com. (See Story Here):(https://www.thefly.com/permalinks/entry.php/id3229796/-Lumentum-slides-after-announcing-B-merger-deal-with-Coherent)