US STOCKS-Wall St extends gains after strong GDP data
* Second-qtr GDP rose 3.7 pct vs earlier reading of 2.3 pct
* Weekly jobless claims fall more than expected
* World bourses gain after brutal week
* All 10 S&P sectors higher; led by energy
* Indexes up: Dow 1.57 pct, S&P 1.77 pct, Nasdaq 1.86 pct (Adds details, changes comment, updates prices)
By Tanya Agrawal
Aug 27 (Reuters) - U.S. stocks extended their rally on Thursday, raising hopes that the worst was behind the market, after further evidence that the U.S. economy was on a solid footing.
Data showed annual U.S. gross domestic product grew 3.7 percent in the second quarter - much faster than the previous estimate of 2.3 percent. Other data showed jobless claims fell more than expected last week, pointing to a steadily firming labor market.
"Today's GDP data shows that the U.S. economy's fundamentals are strong and are growing despite all the global headwinds," said Brad McMillan, chief investment officer for Commonwealth Financial in Waltham, Massachusetts. Continuación...