The U.S. stock market is flirting with its all-time high on Friday. The S&P 500 rose 0.1% and was on track earlier in the day to squeak past its record closing level, which was set in October. The Dow Jones Industrial Average was up 69 points, or 0.1%, as of 12:29 p.m. Eastern time, and the Nasdaq composite was 0.1% higher. ...