Here’s how the stock market tends to react to Fed decisions — and how a twist this week could change that - MarketWatch
1. Federal Reserve decisions cause volatility, especially before holidays. 2. After recent Fed days, S&P 500 typically gains about 0.3%. 3. Record highs may reverse; intraday volatility is common. 4. The Juneteenth holiday could delay market reactions to Fed's decision. 5. External events may overshadow market responses post-Fed announcement.