April has been a disappointing month for seasonal trading, with the S&P 500 down 3.0% and breaking a five-month winning streak. Traditionally, April is a strong month for the stock market, but not this year. This has raised concerns as the market enters a seasonally weak six-month period from May to October. However, experts caution against market timing, noting that even in weaker periods, the S&P 500 has historically posted positive gains. They emphasize that time in the market is more important than trying to time the market.