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Assessing Diversification Of S&P500 And Cdx Indexes, Jeffrey A. Palma Jun 2023

Assessing Diversification Of S&P500 And Cdx Indexes, Jeffrey A. Palma

Doctoral Dissertations (DBA)

In this paper, I conduct a study of comovement between equity and corporate bonds using S&P500 and Investment Grade and High Yield CDX Indexes to evaluate the diversification benefits of holding these assets in portfolios. I assess comovement and diversification potential using DCC-GARCH and copulas. This approach allows for a review of equity and credit linkages through multiple lenses and evaluation of how these relationships have evolved over time. In general, I find only modest potential for diversification between equity and CDX markets and strong evidence of increased comovement over time.


Forecasting Variance Swap Payoffs, Jonathan Dark, Xin Gao, Thijs Van Der Heijden, Federico Nardari Dec 2022

Forecasting Variance Swap Payoffs, Jonathan Dark, Xin Gao, Thijs Van Der Heijden, Federico Nardari

WCBT Faculty Publications

We investigate the predictability of payoffs from selling variance swaps on the S&P500, US 10-year treasuries, gold, and crude oil. In-sample analysis shows that structural breaks are an important feature when modeling payoffs, and hence the ex post variance risk premium. Out-of-sample tests, on the other hand, reveal that structural break models do not improve forecast performance relative to simpler linear (or state invariant) models. We show that a host of variables that had previously been shown to forecast excess returns for the four asset classes, contain predictive power for ex post realizations of the respective variance risk premia as …


Stock Buyback Announcements: An Examination Of Abnormal Returns In Stock Price & Credit Default Swaps For S&P100 Companies, Alan L. Delfavero Sep 2018

Stock Buyback Announcements: An Examination Of Abnormal Returns In Stock Price & Credit Default Swaps For S&P100 Companies, Alan L. Delfavero

Doctoral Dissertations (DBA)

This event study examines the short-run effect of stock buyback announcements on stock price and credit default swaps (CDS) exclusively for mega capitalization S&P 100 companies. The research sample consists of 53 S&P 100 companies and includes 133 buyback announcement events occurring between September 2011 and May 2018. The study utilizes the market model to estimate expected returns and to compute abnormal returns (AR) for equity and abnormal change (AC) in CDS. Based on an initial analysis, it’s determined that there is a statistically significant AR and cumulative abnormal return (CAR) for stock price, and a significant AC in CDS, …


Institutional Shareholding And Information Content Of Dividend Surprises: Re-Examining The Dynamics In Dividend-Reappearance Era, Abu S. Amin, Shantanu Dutta, Samir Saadi, Premal P. Vora Apr 2015

Institutional Shareholding And Information Content Of Dividend Surprises: Re-Examining The Dynamics In Dividend-Reappearance Era, Abu S. Amin, Shantanu Dutta, Samir Saadi, Premal P. Vora

WCBT Faculty Publications

We examine the role of institutional investors’ investment horizon on the information content associated with dividend announcement surprises in the “dividend-reappearance era”. We find that the presence of institutional investors negatively affects the announcement period cumulative abnormal return (CAR), which suggests that institutional investors reduce information content of dividend announcements. This result is primarily driven by the fact that institutional investors, especially the not-short-horizon investors, do not prefer dividend surprises – which leads to lower announcement period CAR. We do not find support for institutional investors’ informed trading argument. Our study reveals that in order to understand the dynamics between …