US STOCKS-Wall St edges up after Alcoa results; Fed minutes due
* Alcoa higher after earnings
* Fed minutes on tap at 2 p.m. ET
* Intuitive Surgical slumps after outlook
* Indexes up: Dow 0.29 pct, S&P 0.26 pct, Nasdaq 0.64 pct (Updates to open; adds quote, data)
By Chuck Mikolajczak
NEW YORK, April 9 (Reuters) - U.S. stocks edged higher on Wednesday, putting the S&P 500 on track for a second straight advance, in the wake of earnings from Alcoa and ahead of the minutes from the last Federal Reserve meeting.
Alcoa Inc gained 4.5 percent to $13.09 as the best performer on the S&P 500 after it reported a decline in first quarter adjusted profit, but earnings came in ahead of analysts' expectations.
U.S. stocks had advanced in the prior session to snap a three-day losing streak as investors bought beaten-down social media and Internet shares.
Despite the three-day selloff, the benchmark S&P 500 index managed to hold above its 50-day moving average around 1,840, a key support level. The index has successfully defended the 1,840 area several times over the past month. Continuación...