Catch up on today's top five analyst initiations with this list compiled by The Fly: 1. Altair (ALTR) initiated with a Buy at Berenberg. 2. Chemours (CC), Tronox (TROX) and Venator Materials (VNTR) initiated with an Equal Weight at Morgan Stanley. 3. Oclaro (OCLR), Lumentum (LITE) and Acacia Communications (ACIA) initiated with a Buy at Loop Capital. 4. Rocket Pharmaceuticals (RCKT) initiated with an Outperform at Evercore ISI. 5. U.S. Steel (X) initiated with a Sell at Vertical Group. This list is just a portion of The Fly's analyst coverage. To see The Fly's full Street Research coverage, click here.