IPO market stalls as volatility, AI fears reshape listings landscape. The twisted story of Blackstone-backed Liftoff Mobile may provide the clearest view into the complications of going public now. The ad-tech firm filed its S-1 in January, withdrew it in February, then confidentially refiled just hours later—keeping its options open while markets lurched. It is not alone. Fintech company Clear Street filed to go public in January and then pulled the plug a month later. PhonePe, an Indian