Catch up on today's top five analyst initiations with this list compiled by The Fly: 1. BTIG initiated coverage of Juno Therapeutics (JUNO) with a Sell rating, saying the firm is "generally skeptical of current investor expectations for the CD19 CAR T market." The firm has a fair value estimate on Juno of $23 per share. 2. JPMorgan analyst Alex Yao assumed coverage of Sohu.com (SOHU) with an Underweight rating and $40 price target. The rating is unchanged and the price target is lowered from $47. The company will find it difficult to come up with new initiatives to address the continued decline in games revenue, Yao tells investors in a research note. 3. JPMorgan's Yao assumed coverage of SINA (SINA) with an unchanged Overweight rating and $123 price target. 4. Jefferies analyst Jason Kupferberg started First Data (FDC) with a Buy rating and $16.50 price target. Growth in the company's domestic merchant processing segment is set to inflect, the analyst tells investors in a research note. 5. Baird analyst William Power initiated j2 Global (JCOM) with an Outperform rating and $83 price target, citing its attractive valuation, strong free cash flow, consistent margin expansion, the growth in digital media, and its disciplined acquisition strategy. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.