The stock market just entered its weakest 10-day stretch of the year

• The stock market just entered its weakest 10-day stretch of the year, according to Bank of America.
• The bank highlighted that the last 10 days of September are especially weak when the first half of the month is down.
• But seasonal data suggests the stock market can recover and have a better year-end after it escapes September.

The S&P 500 just entered its weakest 10-day stretch of the year, according to seasonality data from Bank of America.