Abstract
This study addresses stock selection modeling and portfolio construction and implementation in global and U.S. markets in the context of multi-objectives optimization framework. We will show how forecasted earnings acceleration factors can enhance returns in global and U.S. stock markets. We construct Markowitz portfolios for Global and U.S. domestic Markets that offer superior returns-to-risk ratios, relative to domestic portfolios. We show how stock repurchases and corporate exports can be estimated and implemented as the third objective to generate statistically significant excess returns in global and U.S. stock markets. It is particularly interesting to note the conflicting corporate strategies’ impacts on stockholder wealth.
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Guerard Jr. et al. (2015) documented the stock selection effectiveness of CTEF, which accounts for up to 90 percent of the stock selection in the United States Expected Returns Model (USER) and the Global Expected Returns Model (GLER).
Lakonishok and Vermalen reported premiums of 21.79, 24.09, and 18.54% on tender offers during the 1962–1986, 1962–1979, and 1980–1986 periods, respectively. They also reported cumulative abnormal returns of 12.54, 14.58, and 9.78% to non-tendering stockholders during the corresponding periods. Smaller firms produced the highest abnormal returns.
A forecast of dividend levels can be obtained by studying past payout rates and attempting to predict future earnings levels. The amount left after common dividends are paid represents retained earnings or earnings reinvested in the firm. Firms target a target debt ratio by choosing between debt and equity repurchases rather than choosing between debt and equity issuances, see Bierman (2001). Repurchases and dividends are motivated by contracting future investment opportunities, see Bierman (2010).
The corporate exports variable consolidates the dividend, net stock and debt buybacks and net stock and bond issues, as opposed to use traditional goal programming, minimizing the deviations from desired targeted levels, see Lee (1972), Guerard and Lawrence (1984), Bravo et al. (2010), and Caballero et al. (2006).
An analysis of the ES components reveals that interest paid has risen faster than dividends paid during the 1971–2011 time period. Net debt issues have risen at an undiminished rate, with the notable exception of 2001–2005 and 2009. Stock repurchases rose substantially following the crash of October 1987. Net equity repurchases increased substantially in the 2002–2006 time period, and fell dramatically with the financial crisis. To illustrate the corporate fund generation process, Guerard [2010] showed the ten largest and smallest corporate exporter firms in 1983; the largest corporate exports firms that included AT&T, IBM, and several of the large oil companies dominated positive corporate exports in 1983 as they paid large dividends and interest and generally re-purchased more debt than was issued (which made a great deal of sense given the level of interest rates in 1983). A similar process occurred in 2006 as Microsoft, Pfizer, and the oil companies dominated the largest corporate exporting firm (IBM fell to only the 24th largest exporter in 2006). Dividends paid exceeded equity repurchased of the Compustat firms from 1971–2011, although equity repurchases have risen relatively to dividends since 1982. We examine the 1971–2011 period because Compustat does not maintain debt and equity issuance, and repurchases, prior to 1971.
The global corporate sector is a net (zero) exporter porter of funds for 1997–2015. Dividends and interest paid are less than net common stock issuances plus net debt issuances. Common stock repurchases and debt repurchases occur less frequently with non-U.S. markets than with U.S. stocks.
The estimation of factors, or betas, can be accomplished using firm fundamental data, as in the Rosenberg (1974), Rosenberg and Marathe (1979), and Menchero et al. (2010), or principal component analysis of historical stock returns, as in Blin et al. (1997), or Saxena and Stubbs (2012), or Guerard Jr. et al. (2014). The reader is referred to complete and excellent surveys of multi-factor models found in Rudd and Clasing (1982), Farrell Jr (1997), Grinold and Kahn (1999), Haugen (2001), Menchero et al. (2010), and Conner et al. (2010).
Markowitz reminds researchers that Chapter 9 of his seminal Portfolio Selection (1959) introduced the semi-variance to portfolio construction.
ITG estimate our transactions costs to be about 60 basis points, each-way, for 2011–2015.
The first level is the information coefficient, IC, of a strategy in which the subsequent ranked returns are regressed as a function of the ranked financial strategy. The regression coefficient is the IC which is a randomly distributed variable to test the statistical significant of the individual variable or composite model strategies. The second level of investment testing is to estimate, with transactions costs, the Markowitz efficient frontier, by varying either the lambda or the targeted tracking error. The third level of testing is to apply the Markowitz and Xu (1994) Data Mining Corrections, DMC, to test whether the strategy is statistically different from any model that could have been used. Moreover, the regression coefficient of the DMC test indicates how much excess returns could be continued into the future.
We tested an additional global stock universe initially containing approximately 16,000 securities in October 2014 covered by I\(\backslash \)B\(\backslash \)E\(\backslash \)S forecasters. We restrict ourselves to stocks covered by two I\(\backslash \)B\(\backslash \)E\(\backslash \)S, some 12,000 stocks in December 2014. We further restrict our universe to the largest 7500 market-capitalized global stocks because of liquidity issues. In the global 7500 stock universe, we tested an ES constraint as well as a common stock buyback, CSR constraint and a dividends-only, DIV, constraint. We found, for the December 2002–December 2014 time period, that the corporate exports constraint, using 70 as the portfolio characteristic, dominated the common stock buyback (or repurchase) and dividend-only constraints. See Fig. 7 for the CTEF tilt with ES constraint Barra attribution analysis. We find that global buybacks enhance returns. See Table 2. We ran an analysis of U.S. common stock buybacks and found that active returns increased, relative to CTEF, by 150 basis points; whereas the ES constraint increased returns by over 250 basis points, counter to the Fu and Huang (2016) U.S. result. It is interesting that corporate exports enhance global active returns particularly when corporate exports are positive in the U.S. and negative $ in non-U.S. stocks. Repurchasing stock and debt, and patying dividends, helps in global portfolio management, as it does in with U.S. stocks. In terms of portfolio active returns, corporate exports enhance portfolio returns globally on a relative basis.
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Acknowledgements
The authors appreciate the comments of Ken Lawrence who was helpful in research conversations as well as updating multi-criteria references. The authors appreciate comments of Richard Brealey regarding portfolio construction with alternative techniques. The authors are appreciative of referee comments and suggestions prevented premature publication of this manuscript. Any errors remaining are the responsibility of the authors, primarily the principal author.
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The views and opinions expressed in this paper are those of the authors and may not represent or reflect those of McKinley Capital Management, LLC. All information contained herein is believed to be acquired from reliable sources but accuracy cannot be guaranteed. This paper is for informational purposes only, was prepared for academics and financially sophisticated and institutional audiences, and does not represent specific financial services or investment recommendations or advice.
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Guerard, J.B., Markowitz, H., Xu, G. et al. Global portfolio construction with emphasis on conflicting corporate strategies to maximize stockholder wealth. Ann Oper Res 267, 203–219 (2018). https://doi.org/10.1007/s10479-016-2380-4
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DOI: https://doi.org/10.1007/s10479-016-2380-4