Template-Type: ReDIF-Paper 1.0 Author-Name: Sonya Zhu Author-X-Name-First: Sonya Author-X-Name-Last: Zhu Title: Volume dynamics around FOMC announcements Abstract: The stock market volume decreases in anticipation of FOMC announcements and increases afterwards. I develop a stylized model and attribute the volume dynamics to discretionary liquidity trading resulting from the presence of private information. Consistent with the model's prediction, I find information asymmetry increases ahead of FOMC announcements, especially before large target rate surprises. Using firm-level high-frequency data, I also find, in the cross-section, that volume changes around these events are particularly stronger for stocks that are more exposed to discretionary liquidity trading. Volume dynamics and liquidity shocks can explain around one third of the pre-FOMC price drift. Creation-Date: 2023-03 File-URL: https://www.bis.org/publ/work1079.pdf File-Format: Application/pdf File-Function: Full PDF document File-URL: https://www.bis.org/publ/work1079.htm File-Format: text/html Number: 1079 Keywords: macroeconomic news, trading volume, liquidity, information asymmetry Classification-JEL: D18, G12, G14 Handle: RePEc:bis:biswps:1079