RT Journal Article SR Electronic T1 Hidden Treasures JF Trading FD Institutional Investor Journals SP 79 OP 83 VO 2007 IS 2 A1 Michael Rosen A1 Harvey. Westbrook, Jr YR 2007 UL http://guides.pm-research.com/content/2007/2/79.abstract AB Hidden Orders are a relatively new type of order that has not received the attention to which it is due. The authors used data for the month of April 2007 to analyze the effective execution rate of hidden orders. They also examined the occurrence of block trading during the trading day and analyze the usefulness of hidden orders versus simply Dark Pool participation to achieve maximum order completion rates.