(Bloomberg)—Scott Shellady, known in the trading pits of Chicago for his trademark “cow jacket,” isn’t going to let a historic blast of Arctic freeze on Wednesday keep him away from the options pits at the world’s largest derivatives exchange, even though many of the city’s workers are planning to hunker down at home.

“I come from a family of farmers,” said Shellady, who commutes into the city from northwest Indiana. “And there’s a word in English that describes the weather we’re having. Winter.”

That may be a bit of Midwest meteorological bluster. The brutally cold weather is expected to make temperatures warmer above the Arctic Circle than in Chicago. It’ll be 21 degrees below zero Fahrenheit in the Windy City on Wednesday and minus-24 on Thursday, according to forecasts. The city’s all-time record low is minus-27, set in 1985.

Read the full article on Crain's Chicago Business here