US STOCKS-S&P 500 edges up in volatile day, energy shares higher
* Dow, S&P 500 coming off worst month since Jan 2014
* Exxon earnings fall less than expected
* ISM manufacturing index misses forecasts
* Dow flat, S&P up 0.2 pct, Nasdaq down 0.1 pct (Updates to midday trading)
By Ryan Vlastelica
NEW YORK, Feb 2 (Reuters) - The S&P 500 edged up in a volatile session on Monday as better-than-expected results from Exxon lifted energy shares and offset disappointing readings on consumer spending and the manufacturing sector.
While the data pointed to weakening economic conditions, major indexes are coming off their worst monthly performance in a year, leading many traders to seek out bargains in beaten-down sectors.
The S&P 500 moved between positive and negative territory repeatedly, with energy strength a consistent theme. The sector rose 0.9 percent after Exxon Mobil reported a smaller-than-expected profit drop of 21 percent. Shares of the Dow component rose 1.4 percent to $88.63.
Crude oil was extremely volatile, rising as much as 4.8 percent, though it pared most of those gains, last trading up 0.1 percent. Continuación...