Deposit variability in banking has received substantial attention in recent empirical studies [1], [2], [3], [4], [5], and [7], Most of these efforts have been cross-section analyses of the determinants of variability. However, the impact of branching on deposit variability has not been tested in any of these studies. Wacht suggests that branching could reduce deposit variability substantially, especially if geographical dispersion could be achieved through relaxing interstate restrictions on branching [6]. In this paper, Wacht's suggestions will be subject to empirical testing for one thrift institution located in a major eastern metropolitan area. In Section I, the test methodology is presented. Data sources and empirical results are discussed in Section II, while the study is summarized and the implications for future research are discussed in Section III.