Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. 8point3 Energy (CAFD) downgraded to Sell at UBS by analyst Julien Dumoulin-Smith, who said the shares are trading at a "significant premium" after outperforming over the past six months. 2. FactSet (FDS) downgraded to Sell at UBS with analyst Alex Kramm saying slowing buy-side employment growth will drive a lower valuation for the shares. 3. Post Properties (PPS) downgraded to Sell at UBS by analyst Nick Yulico, who said there is a "disconnect" between fundamentals and valuation following the stock's outperformance relative to peers. 4. Summit Midstream (SMLP) downgraded to Neutral at Citi with analyst Faisel Khan saying the company has "limited ability" to grow distributions in a low commodity price environment. 5. SunEdison Semiconductor (SEMI) downgraded to Neutral at Macquarie by analyst Deepon Nag, who recommends moving to the sidelines given potential regulatory for a deal and lack of pricing catalysts. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.