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Wealth Effects of Intraholding Company Bank Mergers: Evidence from Shareholder Returns
by Gary Whalen
OCC Working Paper 94-4, May 1994.
Using an event study approach, this analysis examines whether or not intracompany mergers of subsidiary banks by multibank holding companies result in significant, positive, abnormal stock returns. Such a result implies that investors expect this type of merger will improve future profitability, presumably by permitting efficiencies to be realized or revenues to increase. The analysis of the stock returns for a sample of 39 consolidating companies indicates that this is the case.
These findings appear to be quite robust. Furthermore, the findings imply that permitting holding companies with interstate operations to consolidate their banking units across state lines could yield efficiencies as proponents of interstate branching claim.
As with all OCC Working Papers, the opinions expressed in this paper are those of the author alone, and do not necessarily reflect the views of the Office of the Comptroller of the Currency or the Department of the Treasury.
Any whole or partial reproduction of material in this paper should include the following citation: Whalen, Gary, "Wealth Effects of Intraholding Company Bank Mergers: Evidence from Shareholder Returns," Office of the Comptroller of the Currency, E&PA Working Paper 94-4, May 1994.