US STOCKS-S&P 500 ascends 2 percent in two days
* Oil prices edge toward $50/barrel
* Alibaba falls after SEC launches investigation
* Computer Sciences jumps after Hewlett Packard Enterprise deal
* Indexes end higher: Dow 0.82 pct, S&P 0.70 pct, Nasdaq 0.70 pct (Updates to close)
By Noel Randewich
May 25 (Reuters) - Wall Street rose robustly for a second straight session on Wednesday, helped by higher oil prices and investors becoming more comfortable with the prospect of an interest rate hike as early as next month.
Combining Tuesday and Wednesday's performances, the S&P 500 gained 2 percent, its strongest two-day run since early March.
The energy sector led the way in the latest session, up 1.51 percent as oil prices rose toward $50 a barrel. That followed a report of a larger-than-expected drop in U.S. crude inventories, adding to expectations that a steep selloff in the commodity may be over.
Comments from policymakers in recent days and upbeat U.S. economic data have raised expectations that the Federal Reserve could pull the trigger on a rate increase much sooner than previously thought. Continuación...