Research question: What factors contribute to an IPO closing above its market-open price? I am researching the phenomenon of IPO underpricing. However, I would like to analyse the difference between the market open price of an IPO and the market close price on the 1st day of trading. Objective of 1st stage: Identify what variables contribute to an IPO closing above its market open price. Looking for a freelancer with a Masters or a PHD in statistics /econometrics.