FTSE 100 movers: Pearson increases guidance

Pearson is top performer after the FT owner said 2010 earnings will be ahead of expectations. All of its major businesses did well throughout last year. The educational publisher expects full year operating profits to come in around 20% higher than 2009's level, at about £850m. GlaxoSmithKline has started a study that will test intravenous zanamivir as a treatment for influenza and compare it with Tamiflu. Glenmark has been given FDA approval to sell a generic version of malaria drug Malarone. Glenmark has to pay royalties to GlaxoSmithKline.Property investor Land Securities is higher after it reported good lettings across its London and retail portfolios over the past three months. Voids in the like-for-like portfolio were down 5.7% in the quarter to December.Some of yesterday's risers have been hit by profit-taking. SABMiller has lost the previous day's gains, while Petrofac is still higher on the week.British Airways has slipped back on the day it gained full court approval for its merger with Iberia. FTSE 100 - Risers Pearson (PSON) 1,067.00p +6.06%Associated British Foods (ABF) 1,132.00p +1.43%GlaxoSmithKline (GSK) 1,197.00p +1.31%Unilever (ULVR) 1,914.00p +1.27%Vedanta Resources (VED) 2,520.00p +0.88%Essar Energy (ESSR) 536.50p +0.66%RSA Insurance Group (RSA) 136.50p +0.59%BP (BP.) 512.00p +0.59%Land Securities Group (LAND) 702.50p +0.57%Capital Shopping Centres Group (CSCG) 379.00p +0.56%FTSE 100 - Fallers Imperial Tobacco Group (IMT) 1,869.00p -2.96%Petrofac Ltd. (PFC) 1,647.00p -2.26%ARM Holdings (ARM) 524.50p -2.24%Intertek Group (ITRK) 1,809.00p -2.22%SABMiller (SAB) 2,163.00p -2.08%GKN (GKN) 224.20p -2.01%BAE Systems (BA.) 354.00p -1.97%British Airways (BAY) 294.40p -1.90%Investec (INVP) 515.50p -1.90%Kingfisher (KGF) 266.50p -1.77% Pearson Land Securities Glaxosmithkline Bay Capital