RT Journal Article SR Electronic T1 Canadian IPO Share Releases JF The Journal of Private Equity FD Institutional Investor Journals SP 73 OP 89 DO 10.3905/jpe.2008.702792 VO 11 IS 2 A1 Lawrence Kryzanowski A1 Siyi Liang YR 2008 UL https://pm-research.com/content/11/2/73.abstract AB This article provides the first examination of the design, impact and market behavior of two types of lockups for Canadian IPOs listed on the TSX during the 1997–2005 period. Lower IPO underpricing is not related with the existence of lockup information in an issuer's prospectus. IPO firms with dual-class share structures have higher lockup proportions and longer escrow lockup periods, and larger firms have higher lockup escrow proportions. Only high-tech firms exhibit significant negative abnormal returns around unlock days. Lower abnormal trading volumes and relative spreads occur after unlock days only for the IPOs with escrow lockups with stipulated nonzero lockup lengths.TOPICS: Private equity, security analysis and valuation, developed, statistical methods