Exchange-traded funds (ETFs) have grown considerably since their first introduction two and a half decades ago, becoming one of the most popular passive investment vehicles among retail and professional investors. However, their tracking ability is often questioned. In this paper we estimate tracking errors from a sample of 15 American and European ETFs utilizing three different methods. We find that American ETFs seem to exhibit lower tracking errors than European ETFs in all measurements of tracking error. We also analyse and discuss the factors that influence tracking error. Fund size and expense ratios are found to be affecting the tracking ability of ETFs. The results of this study concerning the performance and tracking error determinants of ETFs are consistent with the evidence presented in the literature. To our knowledge, this is the first study to compare American and European ETFs in terms of their tracking ability and their tracking error determinants.

Leveraged Exchange Traded Funds (ETFs) (LETFs) are a recent and highly successful financial innovation; yet, investors and several studies criticized them for not performing as advertised, especially in the long term. Τhis paper discusses their unique characteristics and their path-dependent price dynamics, which may result in unexpected returns. Furthermore, the authors evaluate the performance of a large sample of European and American leveraged ETFs since each fund’s inception and show that they perform as intended for daily holding periods. Leveraged ETFs are also successful in delivering the promised performance over holding periods of up to one week, their performance starts to deviate when the holding period increases to one month. Empirical evidence suggests that bear (short) ETFs deviate from their target return more quickly than their bull (long) counterparts as the holding period lengthens. A possible explanation for this is that transaction costs, which are related to daily re-balancing activity, are higher for bear funds. When comparing the daily performance of European vs American funds, the authors find them both to be equally efficient in replicating their benchmarks, although European leveraged ETFs are much smaller in their Assets Under Management (AUM) compared to US LETFs.

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