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on Financial Markets |
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Issue of 2017‒04‒02
two papers chosen by |
| By: | Groenborg, Niels; Lunde, Asger; Timmermann, Allan G; Wermers, Russ |
| Abstract: | We present a new approach to selecting active mutual funds that uses both holdings and return information to eliminate funds with predicted inferior performance through a sequence of pair-wise comparisons. Our methodology determines both the number of skilled funds and their identity; funds identified ex-ante as being superior earn substantially higher risk-adjusted returns than top funds identified by conventional alpha ranking methods. Importantly, we find strong evidence of variation in the breadth of the set of funds identified as superior, as well as fluctuations in the style and industry exposures of such funds over time and across different volatility states |
| Keywords: | equity mutual funds; Fund confidence set; risk-adjusted performance |
| JEL: | G11 G17 G2 |
| Date: | 2017–03 |
| URL: | http://d.repec.org/n?u=RePEc:cpr:ceprdp:11896&r=fmk |
| By: | Lundström, Christian (Department of Economics, Umeå University) |
| Abstract: | Paper [I] tests the success rate of trades and the returns of the Opening Range Breakout (ORB) strategy. A trader that trades on the ORB strategy seeks to identify large intraday price movements and trades only when the price moves beyond some predetermined threshold. We present an ORB strategy based on normally distributed returns to identify such days and find that our ORB trading strategy result in significantly higher returns than zero as well as an increased success rate in relation to a fair game. The characteristics of such an approach over conventional statistical tests is that it involves the joint distribution of low; high; open and close over a given time horizon. Paper [II] measures the returns of a popular day trading strategy; the Opening Range Breakout strategy (ORB); across volatility states. We calculate the average daily returns of the ORB strategy for each volatility state of the underlying asset when applied on long time series of crude oil and S&P 500 futures contracts. We find an average difference in returns between the highest and the lowest volatility state of around 200 basis points per day for crude oil; and of around 150 basis points per day for the S&P 500. This finding suggests that the success in day trading can depend to a large extent on the volatility of the underlying asset. Paper [III] performs empirical analysis on short-term and long-term Commodity Trading Advisor (CTA) strategies regarding their exposures to unanticipated risk shocks. Previous research documents that CTA strategies offer diversification opportunities during equity market crisis situations when evaluated as a group; but do not separate between short-term and long-term CTA strategies. When separating between short-term and long-term CTA strategies; this paper finds that only short-term CTA strategies provide a significant; and consistent; exposure to unanticipated risk shocks while long-term CTA strategies do not. For the purpose of diversifying a portfolio during equity market crisis situations; this result suggests that an investor should allocate to short-term CTA strategies rather than to long-term CTA strategies. |
| Keywords: | Bootstrap; Commodity Trading Advisor funds; Contraction-Expansion principle; Crude oil futures; Futures trading; Opening Range Breakout strategies; S&P 500 futures; Technical analysis; Time series momentum; Time-varying market inefficiency |
| JEL: | C21 C49 G11 G14 G17 |
| Date: | 2017–03–23 |
| URL: | http://d.repec.org/n?u=RePEc:hhs:umnees:0948&r=fmk |