Switzerland-based ADC Therapeutics SA has returned to the US stock market to launch an initial public offering of its shares after cancelling a proposed offering in October 2019. The latest offering was expected to close on 19 May and indications were that it would raise a gross $232.7 million. The company is issuing 12.2 million shares at a price of $19 per share on the New York Stock Exchange. The Swiss company had prepared an IPO in 2019 but cancelled the event owing to adverse market conditions.