Catch up on today's top five analyst initiations with this list compiled by The Fly: 1. Costco (COST) initiated with a Market Perform at Wells Fargo. 2. Level 3 (LVLT) initiated with an Overweight at Barclays. 3. AC Immune (ACIU) initiated with a Buy at Jefferies, an Outperform at Credit Suisse, and an Outperform at Leerink. 4. Apptio (APTI) initiated with a Neutral at Goldman, a Buy at Jefferies, an Equal Weight at Barclays, a Neutral at JPMorgan, a Buy at BofA/Merrill, an Overweight at Pacific Crest, and a Sector Perform at RBC Capital. 5. Adient (ADNT) initiated with an Outperform at Baird, a Neutral at Buckingham, and a Buy at Seaport Global. This list is just a portion of The Fly's analyst coverage. To see The Fly's full Street Research coverage, click here.