FTSE-100 back in the black, with AstraZeneca a top gainer after a US district court judge ruled in favour for its patent for bipolar disorder treatment Seroquel. However, housebuilders taking the brunt of the selling, with Barrat Developments, Persimmon and Bovis Homes all lower after Taylor Wimpey fails to raise funds. M&S is also a notable decliner on sales profit warning. CAC-40 is up 0.77%, Xetra-DAX up 0.66% and FTSE-100 up 0.71%.