US STOCKS-Wall St closes lower as investors ready for earnings
* Eight of 10 sectors finish negative as rally fades late
* Financials higher ahead of bank earnings
* Norfolk Southern shares fall as Canadian Pacific drops bid
* Indexes fall: Dow 0.12 pct, S&P 0.27 pct, Nasdaq 0.36 pct (Adds Alcoa earnings in paragraph 4)
By Lewis Krauskopf
April 11 (Reuters) - Wall Street closed slightly lower on Monday, with gains in materials and banks countered by declines in consumer staples shares, as investors girded for the start of an earnings season expected to be gloomy.
Equities gave up gains late in the day with the three major indexes finishing in negative territory after posting losses last week.
Investors were looking for cues from the first-quarter earnings season, beginning with Alcoa's report after the bell.
The metals company reported a lower quarterly profit, with results hurt by low alumina and aluminum prices, and its shares fell more than 2 percent in extended trading. Continuación...