It is so cold that Disney on Ice has called off a performance in Chicago.

It is so cold that General Motors has suspended production at several plants in Michigan because of an emergency appeal by the local utility, overwhelmed with heating demand.

It is so cold that Republicans and Democrats are reaching across the aisle in Washington so they can huddle together for warmth. Just kidding.

Tech earnings are a mixed bag

Facebook had company from other tech firms when reporting its earnings yesterday.

Nokia, which now focuses on telecom equipment, warned that it would have a slow start to 2019, though it expects more business from companies building 5G mobile networks later in the year. Samsung, whose operating profit plunged 29 percent amid a decline in demand for memory chips, also said earnings this year might struggle. PayPal disappointed analysts, too, even as its revenue rose.

But Qualcomm beat Wall Street expectations and issued a forecast that assuaged some concerns about a weak smartphone market in China. Other companies also had good news.

Microsoft, often considered an indicator of the broader market, said that its commercial and consumer businesses were doing well, with revenue and profit increasing more than 10 percent from a year earlier. Its continued shift to cloud computing has placed it within striking distance of Amazon, which leads the field.

Alibaba, China’s largest e-commerce business, said that its earnings growth sank last quarter and that its revenue, which rose 41 percent, had increased at its slowest pace since early 2016. Executives said that, while “the slowdown of macro might cause concerns in the market,” the company had minimal exposure to the trade war with Washington and e-commerce was healthier than the overall Chinese economy.

Tesla, the electric carmaker, reported its second straight quarterly profit, but said that its $139 million in fourth quarter earnings was less than what it brought in during the third quarter. The company expects to deliver as many as 400,000 cars this year, up from 245,000 last year. And it said it had $3.7 billion in cash to carry it through a $920 million bond payment in March.