Post-FOMC Drift

Liang Ma, Xiaowen Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We study the patterns of stock returns around the Federal Reserve monetary policy announcements. Much of the existing literature interprets changes in short rates around the announcement windows as policy surprises. In contrast, we follow the "Fed information effect"literature, which posits that financial markets react to central bank announcements not just for unexpected changes in monetary policy stances (monetary policy news), but also for central bank's assessment of economic conditions (non-monetary policy news). We identify the good/bad news using a combination of sign restrictions with high-frequency financial data. "Bad news"events are times when the market interpreted the Fed decisions/announcements as revealing negative Fed information about the economy, and vice versa for "good news"events. A novel finding is that following bad news events, we observe significantly positive stock returns in a 20-day period. This observation is largely consistent with a story of asymmetric effects of good and bad news on the level of uncertainty. Further analysis shows that the post-FOMC drift to economic news in Fed announcements is a market-wide phenomenon. A trading strategy that buys following "bad news"earns an excess return of 2.5% per year with a Sharpe ratio of 0.43.

Original languageEnglish
Article number2350010
JournalQuarterly Journal of Finance
Volume13
Issue number3
DOIs
Publication statusPublished - 1 Sept 2023
Externally publishedYes

Keywords

  • Central bank information
  • return drift
  • sign restriction

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