Our IPO underwriting placement mainly bookbuilding public subscription with the main terms of the underwriters underwriting bookbuilding to underwrite it, which is characterized by having a stock underwriter discretion assigned, this will affect the discretion the placement underwriter behavior. In this study, 2011 of June to December, 2015, a total of 268 using bookbuilding IPO underwriting in Taiwan OTC listed companies as samples, with each sample companies domestic and foreign institutional investors and domestic retail investors in general the placement ratio, explore the effect of stock-based compensation and I PO liquidity. The empirical results show the behavior of IPO underwriters placement rate of remuneration relevance, underwriters for the placement of objects exist significant impact to domestic and foreign institutional investors as well as domestic retail investors in general.