Check out today’s top analyst calls from around Wall Street, compiled by The Fly. JPMORGAN STARTS APPLE AT OVERWEIGHT: JPMorgan analyst Samik Chatterjee initiated coverage of Apple (AAPL) with an Overweight rating and $272 price target. While Apple’s leadership position in the premium smartphone market is well understood by investors, its “faster-than-expected” transformation to a services business, “stronger-than-expected” price increases in the core iPhone business and earnings growth from stock buybacks can drive “considerable upside” to current share levels, Chatterjee said. The analyst also believes Apple’s “robust” high-single-digit growth in the installed base, which he says is a key contributor to services revenue growth, has been underappreciated by investors. LOOP CUTS APPLIED OPTOELECTRONICS TO SELL: Loop Capital analyst James Kisner downgraded Applied Optoelectronics (AAOI) to Sell from Hold and cut his price target for the shares to $20 from $45. The downgrade follows the analyst’s industry checks which suggest the company is having product quality issues in 100G CWDM4 transceivers and that the pricing environment for 100G data center optics “remains very tough.” It’s possible that Applied Optoelectronics can get around the problem by procuring lasers externally, but this would obviously be negative for gross margin, the analyst said. NORTHLAND CUTS AMD TO MARKET PERFORM: Northland analyst Gus Richard said that while his thesis that AMD (AMD) will challenge Intel (INTC) has not changed, valuation has, prompting him to downgrade AMD shares to Market Perform from Outperform. He still sees AMD shares appreciating through year end, but Richard believes the stock price now reflects “irrational expectations.” While downgrading his rating, Richard raised his price target on AMD shares to $30 from $26. STIFEL BOOSTS AMAZON PRICE TARGET TO STREET HIGH: Stifel analyst Scott Devitt increased his price target on Amazon (AMZN) shares to $2,525 from $2,020 primarily due to higher long-term revenue and margin expectations, driven by stronger than previously expected growth from Amazon’s retail, cloud, and advertising businesses. He raised his 2019 advertising and other revenue forecast to $15.0B from $13.5B and hiked his 2020 view for the business to $20.2B from $17.6B. He increased his 2019 AWS revenue forecast to $36.6B from $35.4B and increased his 2020 view for AWS to $50.1B from $47.8B. Devitt also raised his 2019 and 2020 online stores revenue forecasts to $143.1B and $164.6, respectively, from $141.5B and $161.3B. He maintains a Buy rating on Amazon shares. CITI SAYS BED BATH & BEYOND TURNAROUND MAY BE TOO LITTLE, TOO LATE: Citi analyst Kate McShane lowered her price target for Bed Bath & Beyond (BBBY) to $13 from $16 and reiterated a Sell rating on the shares following the company’s Q2 results. Management’s turnaround plan “might be too little too late,” McShane said in a post-earnings research note. In the near term, it’s difficult to envision the company’s initiatives “moving the needle in a meaningful way,” McShane wrote. And over the long term, she finds it unclear which of the projects management will stick with.