Janet H. Cho

Shares of Silicon Laboratories were up nearly 33% in after-hours trading.

Silver Trust’s price on Friday dropped by the largest percentage decline on record, according to Dow Jones Market Data.

More than 115 companies report earnings this week, including Alphabet on Wednesday and Amazon on Thursday.

Adjusted earnings per share and net revenue for the quarter ended Dec. 31 both surpassed Wall Street’s expectations.

Southwest says its fourth-quarter performance benefited from revenue initiatives, including charging for seat assignments and extra-legroom seats.

Amazon.com is closing dozens of Amazon Go and Amazon Fresh physical stores to focus on expanding same-day delivery of groceries and adding to its Whole Foods operations.

Investors are looking forward to a busy week of earnings, including one-fifth of the S&P 500 companies, and four of the Magnificent Seven stocks reporting results this week.

Snow and ice have spread across two-thirds of the U.S. this weekend.

Airlines have already canceled nearly 70 flights, but that number is likely to increase. Weathertrends360 says the storm is likely to hurt retail store traffic on the last weekend of their fiscal fourth quarters.

The carrier's results came hot the heels of rival Delta's financial report.

Tracking site Downdetector said it received 2.3 million reports of outages in the 24-hours starting Wednesday at 11 a.m. Eastern time.

The telecommunications company said it is working to resolve an issue with wireless and data services.