The bull market will celebrate its ninth birthday on March 9, 2018. During that nine-year period, the S&P 500 Index nearly increased fourfold in value including dividends, producing a total return of 385% (19.2% annualized) while rising almost 300% in price. The recent market volatility, driven by fears of tariffs, inflation, and monetary policy, has many wondering if this is the end of the road for the bull market. So how much might the current bull have left in the tank? Given that we are not seeing the warning signs that have historically signaled the ends of past bull markets, including excessive equity flows and activity in initial public offerings and mergers and acquisitions, we would not be surprised if the current bull market celebrates its record tenth birthday next year. This week, we look at some of our favorite bull market indicators and the signals that accompany them.