The ringing of the Nasdaq bell is a sound heard less often these days as Covid-19 has caused business to slam the brakes on flotations. The Carlyle Group, an American investment giant with $195 billion in assets, paused the IPO of Atotech, a German speciality chemicals group. Ninety-two-year-old shoemaker Cole Haan, a division of Nike until it was sold to Apax Partners, also delayed its floatation, as did 58 Home, a home maintenance service company based in China. GAN, a gaming tech company founded by Dublin-born entrepreneur Dermot Smurfit Jr, was the only company to float on Nasdaq in the…