Shares in Morrison were falling sharply after UBS confirmed that it had placed around 100m shares in the supermarket stock on behalf of an institutional seller at 280p each, well below yesterday's closing price of 289.30p. Chip designer ARM Holdings was also under pressure today following its investor day earlier this week as a number of brokers choose to remain cautious on the name given the stock's expensive valuation. Morgan Stanley, Espirito Santo and Liberum Capital have all said that positives are now largely priced in, and raised concerns about the company losing market share to Intel over the next few years. Carnival continued to head lower one day after it issued a brutal profit warning overnight for its full-year earnings per share. Today a raft of brokers cut their target prices and rating for the stock. Meanwhile, Antofagasta rose to lead miners higher as copper prices climbed to the highest level in almost six weeks. Three-month copper on the London Metal Exchange, untraded in official rings, was bid at $7,505 per tonne, after reaching $7,525, the biggest jump since April 12th. It closed at 7,375 dollars yesterday.RBS was higher after it said that it will meet requirements "through continued delivery against its business plan". FTSE 100 - RisersAntofagasta (ANTO) 1,019.00p +5.71%Anglo American (AAL) 1,690.50p +4.26%Randgold Resources Ltd. (RRS) 5,120.00p +3.83%Fresnillo (FRES) 1,089.00p +3.62%Barclays (BARC) 334.75p +3.54%Royal Bank of Scotland Group (RBS) 351.50p +2.72%Rio Tinto (RIO) 3,059.00p +2.69%Vedanta Resources (VED) 1,350.00p +2.66%Reckitt Benckiser Group (RB.) 4,953.00p +2.59%Polymetal International (POLY) 686.00p +2.54%FTSE 100 - FallersMorrison (Wm) Supermarkets (MRW) 282.50p -2.35%ARM Holdings (ARM) 1,043.00p -2.07%British Sky Broadcasting Group (BSY) 786.00p -1.57%Intertek Group (ITRK) 3,233.00p -1.25%Burberry Group (BRBY) 1,522.00p -1.23%Wolseley (WOS) 3,446.00p -1.06%Vodafone Group (VOD) 197.95p -0.98%Carnival (CCL) 2,248.00p -0.84%Weir Group (WEIR) 2,400.00p -0.83%CRH (CRH) 1,431.00p -0.76%NR