CSR, which makes chips for Bluetooth and Global Positioning System (GPS) devices, is sharply higher after third quarter results were better than expected.Pre-tax profits for the period totalled $10.7m compared with a $30.8m over the same period the previous year. Revenues climbed to $219.9m from $205.5m. Bluetooth accounted for $150.4m, GPS for $59.5m.At the time of its second quarter results, CSR issued third quarter guidance of $195m to $215m for revenue. The median forecast of investment analysts' revenue forecasts was $208m.Qinetiq climbs after saying the boss of defence technology group QinetiQ, Graham Love, is being replaced by the former chief of banknote printer De La Rue, Leo Quinn, after eight years at the company.Investment management firm Evolution Group is going well after saying it expects to beat full year profit forecasts this year on the back of strong trading across all of its divisions. Revenues from the Investment Banking arm in the second half of 2009 will be at least double those seen in the first half, reflecting the increased corporate activity.Elsewhere in finance, Fund manager Henderson said assets under management increased 9% to £57.7bn in the third quarter to 30 September 2009 as market conditions continue to improve.National Express is sharply lower after the hard-up bus and train group said it has ended all takeover discussions with rival Stagecoach in order to focus on completing an equity fundraising by the end of this year.Shares in Yell fall back after the cash-strapped Yellow Pages directory publisher Yell Group again extended the deadline for its refinancing. The company, which is looking to restructure £3.8bn of debt, extended the deadline for the third time this week after last night's cut-off passed without success.FTSE 250 - RisersCSR (CSR) 446.60p +11.07%QinetiQ Group (QQ.) 154.80p +8.33%Taylor Wimpey (TW.) 37.77p +5.77%Aquarius Platinum Ltd. (AQP) 274.00p +5.71%Redrow (RDW) 139.80p +5.43%Evolution Group (EVG) 158.50p +4.55%Victrex (VCT) 784.50p +4.32%Barratt Developments (BDEV) 135.30p +4.24%BlueBay Asset Management (BBAY) 368.40p +3.98%Tomkins (TOMK) 162.60p +3.90%FTSE 250 - FallersNational Express Group (NEX) 328.10p -10.01%Laird (LRD) 163.20p -9.33%PartyGaming (PRTY) 221.50p -5.54%Henderson Group (HGG) 127.40p -4.64%PayPoint (PAY) 448.50p -4.17%Melrose Resources (MRS) 357.60p -2.85%Yell Group (YELL) 45.04p -2.81%Imagination Technologies (IMG) 202.50p -2.64%Debenhams (DEB) 77.50p -2.52%PV Crystalox Solar (PVCS) 65.55p -2.16%