Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. AT&T (T) downgraded to Sell from Neutral at MoffettNathanson with analyst Craig Moffett saying he finds it hard to imagine the company's recently issued three-year guidance can be achieved. 2. Helmerich & Payne (HP) downgraded to Hold from Buy at Argus with analyst Bill Selesky saying the stock has been hurt by the persistent oil price volatility and reduced capital spending among its E&P customers, which has also lowered demand for its oil rigs and led to declines in utilization rates and declining margins. 3. Public Storage (PSA) downgraded to Neutral from Buy at BofA/Merrill with analyst Jeffrey Spector citing the company's low earnings visibility along with its marketing pressures and "elevated" industry supply. 4. Leggett & Platt (LEG) downgraded to Hold from Buy at Stifel with analyst John Baugh saying after attending the company's investor conference, the he sees less upside to shares, which he notes have now risen nearly 50% year-to-date. 5. Itau Unibanco (ITUB) downgraded to Neutral from Overweight at JPMorgan with analyst Domingos Falavina saying the company's provisions may surprise to the upside. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.