The Dow was on pace for a 0.4% weekly gain, while the S&P 500 was up 0.5% so far and the Nasdaq Composite was 0.7% higher ...

The NASDAQ-100 is widely followed as a measure mainly of the big tech and social media stocks that make up the index.

The Nasdaq Composite is an index that measures the performance of more than 3,000 securities, all listed on the Nasdaq stock market. Nasdaq was originally an acronym for “National Association of ...