What to watch

It’s earnings 24/7 next week on Wall Street

The Dow tumbled nearly 280 points Friday on China stock market fears and renewed angst over Greece’s long-term future in the eurozone. When trading resumes Monday on Wall Street, it will probably be corporate earnings in the spotlight.

It will be a busy week of earnings. Nearly 30% of the companies — 146 to be exact — in the Standard & Poor’s 500 stock index will report results, according to earnings tracker Thomson Reuters I/B/E/S. The earnings season, which started off with deep concerns over the possibility of the first contraction in quarterly profits since the financial crisis in 2009, has gotten off to a good start. Profits are on track to fall 2%, which is better than the nearly 3% decline at the start of April. Three out of four companies have beat forecasts.

There’s no shortage of bigname U.S. companies on the docket next week.

Monday, tech bellwether IBM reports, as will oil services firm Halliburton and investment bank Morgan Stanley.

Consumer stocks, such as sports apparel maker Under Armour and Chipotle Mexican Grill, go public with results Tuesday.

Wednesday, Dow blue chips Coca-Cola and McDonald’s report, as do home builder D.R. Horton and AutoNation, the USA’s largest auto seller.

Thursday’s another big day, with consumer plays Pepsico, Procter & Gamble and Starbucks on tap. Tech powerhouses Google and Amazon.com will also report. American Airlines reports Friday.