Event study reveals negative abnormal stock returns in US financial firms following interest rate inaction, highlighting rational pricing and market efficiency.
In September 2015, the Federal Open Markets Committee (FOMC) opted not to act when an increase in interest rates was largely expected. Further, President Yellen’s comments were atypical. We investigate the effect of this announcement on the stock returns of US financial firms; more than a third of which experienced negative abnormal returns. The reaction; however, was not identical across firms indicating differential treatment based on individual firm characteristics. Our results suggest that institution size and classification as a commercial bank are the primary drivers. The outcomes of this study are important as they support the theory of rational pricing and market efficiency.
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Lee et al. (2020) studied this question.
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