O’Hare International Airport ranked among the busiest U.S. airports last year, despite still lagging pre-pandemic traffic levels. Crain’s reporter Pawan Naidu discusses the data with host Amy Guth.Plus: Ariel execs departing with buyouts as firm resets amid market upheavals, Chicago brokerage R.J. O'Brien acquired for $900 million, New York investor pays $170 million for Fulton Market apartments and University of Chicago gets $100 million gift for business school.