U.S. markets give vote of confidence Tuesday

U.S. stock markets appeared headed higher Tuesday as polls opened for the presidential election.

Futures tied to the Standard & Poor's 500 Index gained 20 points to 999 at 7:15 a.m. Dow Jones Industrial Average futures gained 181 points to 9513. Nasdaq 100 futures added 30 point to 1371.50.

European stock markets built on gains in Asia overnight. At 8:01 a.m. the FTSE 100 Index was up 89 points, or 2 percent, to 4532 on the London Stock Exchange. The Dax Index added 91points, or 1.8 percent, to 5118 on the Frankfort Stock Exchange.

The Nikkei 225 gained 537 points, or 6.27 percent, to 9114 on the Tokyo Stock Exchange Tuesday.