TY - JOUR T1 - Premiums and Returns of iShares JF - ETFs and Indexing SP - 135 LP - 143 VL - 2009 IS - 1 AU - Gerasimos G Rompotis Y1 - 2009/09/21 UR - http://guides.pm-research.com/content/2009/1/135.abstract N2 - This article estimates the premium in ETFs’ trading prices and assesses the impact of the premium on returns. Results indicate that ETFs trade, on average, at a slight daily premium to their net asset value amounting to 0.015%. However, this premium is not persistent, which means that the premium on one day basically disappears the next day. Seasonal analysis on premium indicates that the average premium of iShares during December is higher relative to other months. Finally, it is revealed that the return is positively affected by the contemporaneous premium and negatively by the lagged premium, reflecting violence to the efficient-markets hypothesis. ER -