Explained: Asian shares fall on selling of tech shares as markets watch for results of US midterm elections

Asian shares fell Wednesday and U.S. futures edged lower as markets watched for U.S. midterm election results

S&P 500

A U.S. stock market index tracking 500 large companies

Brent crude

The international benchmark price for oil

10-year Treasury yield

The return investors get on U.S. government 10-year bonds, used as a benchmark interest rate

Nasdaq composite

A U.S. stock index heavily weighted toward technology companies