The algorithm for optimization of a credit portfolio has not been fully demonstrated. This paper fills the gap in the literature by presenting a general approach for optimizing a credit portfolio by minimizing the default risk of the entire portfolio. Default risk is measured with quadratic...

Employing asset-pricing models over the period 2012 to 2017, this study examines whether a search attention index (SAI) explains the variation in the weekly excess return of stocks. The study finds that the estimated abnormal return of a portfolio based on search intensity is significantly high...

This paper compares the impact of market multiples on stock returns between emerging (ASEAN) and developed (European) financial markets. A t-test, fixed effects, and GMM are applied to a sample of 4725 firms for fifteen years. The findings show that market multiples differ across emerging and...

We study the post-earnings announcement drift (PEAD) anomaly and its determinants in Borsa Istanbul using quarterly earnings announcements and three different surprise measures. We find evidence supportive of the existence of PEAD in the Turkish stock market. Sorting stocks each quarter into...

In this paper, we investigate volatility spillovers between oil prices and the stock prices of the companies listed in Borsa Istanbul. We employ the dynamic conditional correlation (DCC) and Baba, Engle, Kraft, and Kroner (BEKK) GARCH models using daily data for the period between June 22, 2015,...

This study shows how correlated information consumption (CIC) of retail investors relates to comovement in stock market outcomes. We construct clusters of stocks with CIC by employing network analysis on Google co-search data. We predict significant comovement in returns and liquidity of stocks...

The recent 50% drop in the price of the flagship cryptocurrency Bitcoin reinforces the persistent anxiety among cryptocurrency investors. Can alternative assets hedge Bitcoin risk? This study investigates the ability of equities, commodities, bonds, currencies, and VIX futures to hedge Bitcoin....

In the literature on sustainable investing, most studies assume normal market conditions. However, research is limited regarding the specific role of sustainable investing during stressed market conditions. In this paper, we contribute to the literature by investigating the role of ESG investing...

Momentum, size, and low volatility in emerging markets regularly exhibit increased correlations across factors and markets in periods of negative returns. I provide a framework to distinguish a unique source of risk from a set of factors in the stage of portfolio formation. The framework is...

We mathematically show that, no matter how many factors are added to the capital asset pricing model (CAPM), beta will always matter. We also show that adding more factors to a single-factor CAPM requires market risk premiums to be modeled as time varying. In addition to allowing time-varying...