It's the busiest day of the second-quarter earnings season with a bunch of companies having reported before the bell and just as many set for this afternoon. Positive earnings from Facebook Inc. (FB) boosted markets, sending the Nasdaq to intraday highs. Comcast Corp. (CMCSA) moved higher after it turned out a strong quarterly performance tied to solid box office, TV and theme park results. Overall revenue jumped nearly 10% with the largest gains seen in filmed entertainment. Twitter Inc. (TWTR) sold off on worrying signs of slowing user growth. The social network reported 328 million monthly active users over the second quarter, a flat reading from the first three months of the year. Anheuser-Busch InBev (BUD) led the consumer sector higher on better-than-expected earnings. Strong performances in Mexico, Australia and South Africa offset weakness in Brazil.