“…Most researchers have determined that using aggregate portfolio data may disguise important information (Engstrom, 2004), and most recent studies focus on using portfolio holdings data to determine fund trading in order to more precisely measure fund skill (e.g., Comerton-Forde, Gallagher, Nahhas & Walter, 2010;Engstrom, 2004;Wermer, 2000). Fowler et al (2010) found that New Zealand active managers do not provide any excess returns, a significant finding for the industry. However, the viability of the conclusions is questioned due to the old-fashioned methods employed.…”