Paragon is a top riser today. The buy-to-let mortgage lender reported a sharp increase in full year profit on strong rental demand, a decrease in its provision for losses and as the turmoil of the credit market crisis continues to fade.Oil related stocks are higher after strong US jobs data brightened the economic outlook. Lamprell and Heritage Oil are among the top risers.Dixons Retail is higher ahead of the electrical retailer's interim results tomorrow, but engineering contractor WS Atkins, which is also due to update, falls back.FTSE 250 - RisersProvident Financial (PFG) 836.50p +7.94%Paragon Group Of Companies (PAG) 169.00p +5.96%Lamprell (LAM) 325.80p +5.20%Cookson Group (CKSN) 552.50p +4.74%Heritage Oil (HOIL) 378.50p +4.50%Aberdeen Asset Management (ADN) 180.90p +4.33%Gartmore Group Ltd. (GRT) 101.00p +4.12%Dixons Retail (DXNS) 26.17p +4.10%Persimmon (PSN) 351.80p +3.96%Regus (RGU) 77.30p +3.76%FTSE 250 - FallersInternational Personal Finance (IPF) 301.00p -2.49%Grainger (GRI) 91.75p -2.08%Rightmove (RMV) 735.00p -2.00%Victrex (VCT) 1,172.00p -1.92%Premier Foods (PFD) 16.98p -1.91%Cable & Wireless Worldwide (CW.) 63.75p -1.77%Atkins (WS) (ATK) 700.50p -1.75%BTG (BGC) 215.00p -1.38%TalkTalk Telecom Group (TALK) 152.70p -1.17%Big Yellow Group (BYG) 311.40p -1.17%