A more skeptical view of buybacks was presented in the study by the three researchers at Research Affiliates. The common presumption, they noted, is that buybacks are good because they remove shares from the market. But if the same corporations also are issuing new stock separately, that would mitigate the benefits.
Why would companies issue new shares? One reason is to finance executive compensation as CEOs and other top corporate officials exercise stock options. "When management redeems stock options, new shares are issued to them, diluting other shareholders," the authors note.
"Buyback? Not really! Management compensation? Yes."
Another reason is to pay for non-cash acquisitions of other companies. With some mergers and acquisitions, issuing new stock to make the purchase can dilute or erode the value of shares already outstanding. The purchase of one public corporation by another generally wouldn't make much of a net impact because new shares of the one entity are being used to retire those of the other. But buying a private company with new stock, as with Facebook's acquisition of WhatsApp, would represent new issuance and thus dilution.
Further, corporations sometime buy back shares at the same time they are increasing debt, which can make a company more risky.
Several giant companies that had some of the largest buybacks last year also engaged in some of the biggest stock issuance, including Cisco, Oracle, Johnson & Johnson, Wells Fargo and Merck, according to the report.
The researchers take a swipe at the occasional practice of adding a company's buybacks and dividend yield together to generate a performance measure for shareholders. With buybacks representing 2.9% of the capitalization of S&P 500 companies and dividend yields at 1.9%, that suggests a combined 4.8% yield for shareholders.
But this number fails to include new issuance that offsets most or all of the former number. "We do not think that the naïve sum of dividends plus buybacks has merit," the authors said.
Taken together, the report sees little overall benefits from share buybacks for mainstream investors.
"The reality is that publicly traded companies in the United States are issuing far more new securities than they are buying back," the authors say. "In the aggregate ... buybacks are simply a mirage."
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