LONDON (ShareCast) - MICRON TECHNOLOGY (Dusseldorf: 951691.DU - news) : Sterne Agee reiterates buy, price target of $11 (vs. $12). ZIMMER HOLDINGS (NYSE: ZMH - news) : Mizuho upgrades to buy from neutral, price target of $62 (vs. $53). BOSTON SCIENTIFIC (NYSE: BSX - news) : Mizuho downgrades to neutral from buy, price target of $5.40 (vs. $7). JUNIPER NETWORKS (Xetra: 800910.DE - news) : BMO Capital upgrades to overweight from hold. CME GROUP: Macquarie upgrades to overweight from neutral, price target of $344. C.S.