The SPDR S&P 500 ETF Trust (SPY) was higher, but just by 50 cents, or 0.2%, to $255.14. The miss in core consumer prices -- more proof that inflation remains weak -- was the most significant data point of the day for the market. Ian Lyngen and Aaron Kohli of BMO Capital Markets wrote to clients about CPI: Mike Loewengart of ETrade thought the retail sales number was decent, especially given the impact of hurricanes, and signaled a healthy U.S. economy.