Today's noteworthy downgrades include: 3D Systems (DDD) downgraded on lack of visibility at Oppenheimer... Bruker (BRKR) downgraded to Market Perform from Outperform at William Blair... Equinix (EQIX) downgraded to Hold from Buy at Stifel... JA Solar (JASO) downgraded to Neutral from Buy at Roth Capital... Melrose Bancorp (MELR) downgraded to Neutral from Buy at Compass Point... NetApp (NTAP) downgraded to Hold from Buy at Cantor... Omnicare (OCR) downgraded to Market Perform from Outperform at Cowen... Rexnord (RXN) downgraded to Neutral from Outperform at Wedbush... Sarepta (SRPT) downgraded to Neutral from Buy at BofA/Merrill... SouFun (SFUN) downgraded to Hold from Buy at Brean Capital... Stock Building Supply (STCK) downgraded to Sell from Neutral at Goldman... Vodafone (VOD) downgraded to Neutral from Outperform at Macquarie.