0633 GMT [Dow Jones] Barclays Capital upgrades GlaxoSmithKline (GSK) to overweight from equalweight, and keeps its price target at 1380p. Says investor concerns around Avandia and Advair are overdone. Adds the stock seems cheap with a dividend yield of 6.2%, a free cashflow yield of 12%, and 17% upside to BarCap's DCF valuation. Says in this climate boring is beautiful. Shares closed at 1164p. ([email protected]) Contact us in London. +44-20-7842-9464 [email protected] (END) Dow Jones Newswires June 11, 2010 02:33 ET (06:33 GMT)