We examine the impact of Ebola headline news days on media-highlighted stocks. An Ebola news day (negative or positive in nature) is associated with increased trading, higher share volume, higher dollar volume, and increased share turnover. OLS regressions on industry-specific portfolios reveal...

News and sentiment in news often influence financial markets and asset prices. While this is well-recognized by investors, only few studies have used sentiment in news to predict future developments in financial markets to formulate alpha generating strategies, let alone create a best practice...

In this paper we document that at the aggregate stock market level the unexpected volatility is negatively related to expected future returns and positively related to future volatility. We demonstrate how the predictive ability of unexpected volatility can be utilized in dynamic asset...

Machine learning offers a set of powerful tools that holds considerable promise for investment management. As with most quantitative applications in finance, the danger of misapplying these techniques can lead to disappointment. One crucial limitation involves data availability. Many of machine...

Feedback trading strategies have gained much popularity among researchers in the last decadesand are used to illustrate how new information based on returns is reflected in the markets. This paper extends previous studies by decomposing the overall return premium and introducing the global...

In this work, a rule-based definition of market corrections that depends on price volatility is proposed. This enables consistent comparison of corrections in different markets. Statistics of corrections in several US equity indexes and major US equity sector ETFs is compiled. According to the...

Asset returns in efficient markets should not display serial correlations. Otherwise, asset prices would be predictable to a certain extent and arbitrage opportunities would appear, contradicting the assumption of efficiency.Lack of serial correlation is considered to be true for most...

We provide first empirical evidence of the long-term realized performance of alternative beta strategies. Despite diversified risk premia portfolios achieving satisfactory Sharpe ratios of 0.80 – 1.07 over the past decade, we show that up to two thirds of the performance can be explained by...

Black-Litterman model provides a reasonable platform to portfolio optimization and asset allocation by presenting an equilibrium state of the markets and only deviating from that equilibrium state with forward-looking strategic views. Index of Economic Freedom (IEF) can be used as a handy tool...