U.S. stocks rose Monday, boosted by takeover activity worth more than $15 billion and as a fall in oil prices below $60 a barrel brightened investors' outlook for an economic and earnings rebound.

Based on the latest available data, the blue-chip Dow Jones industrial average (search) was up 36.98 points, or 0.36 percent, to end unofficially at 10,439.75.

The broad Standard & Poor's 500 Index (search) was up 8.50 points, or 0.71 percent, at 1,206.91. The technology-laced Nasdaq Composite Index was up 30.42 points, or 1.46 percent, at 2,120.30.

For the month of October, though, all three stock indexes fell. The Dow fell 1.22 percent in October, while the Nasdaq (search) dropped 1.46 percent and the S&P 500 finished the month down 1.78 percent.