
The SPDR S&P 500 ETF Trust (NYSE:SPY) closed the first day of September down 0.7%. Investors now start the month wondering if the "September Effect" is here and the market will once again post negative returns for the worst month of the year.

The SPDR S&P 500 ETF Trust (NYSE:SPY) closed the first day of September down 0.7%. Investors now start the month wondering if the "September Effect" is here and the market will once again post negative returns for the worst month of the year.