ITV is getting a good reception from investors today after Goldman Sachs upgraded the broadcaster to 'buy' from 'sell'. The US bank anticipates that forward advertising data will start to sow signs of levelling off over the second and third quarters.But Britvic is lacking a bit of fizz after private equity group Permira sold its 14% stake in the soft drinks maker.Mining stocks are mixed, with precious metal firm Hochschild and nickel and zinc specialist Talvivaara higher, but Aquarius Platinum among the fallers.FTSE 250 - RisersITV (ITV) 32.00p +14.29%Hochschild Mining (HOC) 282.25p +10.69%Aveva Group (AVV) 702.00p +9.77%Greene King (GNK) 442.25p +7.41%Talvivaara Mining Company (TALV) 322.00p +6.18%Moneysupermarket.com (MONY) 52.75p +6.03%Investec (INVP) 334.75p +5.93%DSG International (DSGI) 24.50p +5.38%Premier Oil (PMO) 1,133.00p +4.91%Aegis Group (AGS) 86.00p +4.88%FTSE 250 - FallersBritvic (BVIC) 279.00p -3.96%JKX Oil & Gas (JKX) 208.50p -3.92%IG Group Holdings (IGG) 216.75p -3.24%F&C Asset Management (FCAM) 77.00p -3.14%Ultra Electronics Holdings (ULE) 1,100.00p -3.00%Charter International (CHTR) 543.50p -2.95%Premier Farnell (PFL) 140.00p -2.78%Aquarius Platinum Ltd. (AQP) 279.00p -2.62%Soco International (SIA) 1,261.00p -2.55%HSBC Infrastructure Company Ltd. (HICL) 115.00p -2.54%