S&P 500 and VOO stock: Top catalysts to watch this week

S&P 500 Index to react to Federal Reserve interest rate decision 

A major catalyst for the S&P 500 Index and its ETFs this week will come out on Wednesday when the Federal Reserve delivers its interest rate decision on Wednesday.

Economists expect the central bank to leave interest rates unchanged between 3.50% and 3.75%. Officials will also send a signal on what to expect this year now that the US has moved into a stagflation.