The iShares 20+ Year Treasury Bond ETF (TLT) was set to open 68 cents or 0.5% higher at $125.63 based on pre-market trading. 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.