US STOCKS-Wall St gains as weak dollar boosts commodities
* Crude up more than 2 pct
* National Oilwell Varco drops after cutting dividend
* Indexes up: Dow 0.41 pct, S&P 0.31 pct, Nasdaq 0.39 pct (Updates to early afternoon)
By Abhiram Nandakumar
April 11 (Reuters) - Wall Street gains were driven by materials stocks on Monday as a weaker dollar boosted commodities, and investors turned their focus to the earnings season.
Profits at S&P 500 companies are expected to have fallen 7.7 percent on average in the first quarter, according to Thomson Reuters I/B/E/S, under pressure from a weak global economy.
Alcoa, seen as the unofficial start to quarterly earnings season, is set to post first-quarter results after the market closes. The company's shares rose 3.9 percent to $9.73.
Big bank earnings are also on the cards through the week, starting with JPMorgan Chase & Co on Wednesday.
Crude oil, which has been a big influence on the stock market this year, was up more than 2 percent ahead of next Sunday's meeting of producers aimed at freezing output. Continuación...