Engineering software firm AVEVA was a high riser after Berenberg upgraded the stock to 'buy' and lifted its target price from 1,660p to 1,927p. Support services firm Carillion was a heavy faller after UBS downgraded the stock from 'neutral' to 'sell' and cut its target price from 285p to 230p. UBS said that the firm's first-half trading update showed a "deterioration in growth prospects" and that UK construction margins are "clearly not sustainable". FTSE 250 - RisersAveva Group (AVV) 1,755.00p +3.42%Beazley (BEZ) 144.30p +2.05%NMC Health (NMC) 202.00p +2.02%Ferrexpo (FXPO) 225.10p +1.86%International Personal Finance (IPF) 248.00p +1.72%Soco International (SIA) 331.30p +1.59%Spirent Communications (SPT) 169.10p +1.56%Man Group (EMG) 64.20p +1.50%Rank Group (RNK) 118.20p +1.46%Moneysupermarket.com Group (MONY) 130.80p +1.40%FTSE 250 - FallersCarillion (CLLN) 253.50p -5.38%Petropavlovsk (POG) 462.60p -3.14%Ashtead Group (AHT) 263.00p -2.70%Spirit Pub Company (SPRT) 46.50p -2.62%Atkins (WS) (ATK) 710.00p -2.54%Avocet Mining (AVM) 62.90p -2.48%Jupiter Fund Management (JUP) 213.70p -2.38%Imagination Technologies Group (IMG) 471.90p -2.32%Ocado Group (OCDO) 71.60p -2.25%Bwin.party Digital Entertainment (BPTY) 108.70p -1.98%NR