Platinum refiner and chemicals group Johnson Matthey rose to the top of the FTSE 100 on Thursday after the company reported full-year results that beat analysts' estimates. Bank of America Merrill Lynch upgraded its rating from 'neutral' to 'buy', saying Johnson's second-half earnings were 5.0% ahead of consensus estimates. BT Group's shares edged higher as Liberum Capital reiterated a 'buy' rating and upped its target price from 315p to 345p.RSA Insurance Group advanced as Morgan Stanley lifted its rating from 'underweight' to overweight' and raised its target price from 124p to 136p.On the other end of the spectrum, easyJet slumped as the airline reported a rise in passenger numbers by 3.4% to 5.61m in May. The dip follows a 61% jump in the share price so far in 2013. Aberdeen Asset Management retreated after UBS cut its target price from 520p to 505p and Chief Investment Officer, Anne Richards, offloaded 1.4m shares in the company.Wolseley fell from yesterday's climb as Goldman Sachs reduced its target price from 1282p to 1353p. Reports earlier in the week said the company has been affected by a slight slowdown in the US and ongoing weakness in Europe. FTSE 100 - RisersJohnson Matthey (JMAT) 2,739.00p +5.92%BT Group (BT.A) 302.80p +2.96%RSA Insurance Group (RSA) 115.60p +2.12%Vodafone Group (VOD) 189.90p +1.28%Reed Elsevier (REL) 733.50p +0.69%Burberry Group (BRBY) 1,402.00p +0.57%GKN (GKN) 307.20p +0.56%Eurasian Natural Resources Corp. (ENRC) 243.90p +0.49%Tate & Lyle (TATE) 817.50p +0.49%Tesco (TSCO) 347.25p +0.48%FTSE 100 - FallerseasyJet (EZJ) 1,191.00p -3.48%Aberdeen Asset Management (ADN) 425.30p -2.79%Wolseley (WOS) 3,074.00p -2.72%Standard Chartered (STAN) 1,458.00p -2.67%Barclays (BARC) 308.05p -2.61%Old Mutual (OML) 192.70p -2.53%Antofagasta (ANTO) 919.50p -2.28%Royal Bank of Scotland Group (RBS) 322.20p -1.89%Petrofac Ltd. (PFC) 1,286.00p -1.83%Melrose Industries (MRO) 252.10p -1.72%RD