Tying Initial Public Offering (IPO) allocations to after-listing purchases of other IPO shares, as a form of price support, has generated much theoretical interest and media attention. Price support is price manipulation and can reduce secondary investor return. Obtaining data to investigate...

Shares sold through Initial Public Offerings (IPOs) are often underpriced and therefore very popular investment objects. Fjesme (2016) documents that the allocating investment bank requires certain larger investors in popular IPOs to also purchase more shares after the stock exchange listing....