RE:How high can s and p 500 goSP 500 ATH is at 2134 from May 2015. It broke 2000 in Sept 2014. Markets have gone nowhere in two years. Long term support is at 1810 long term resistance is at 2110. Which is where we are at right now. The anticipated FED rate hike has been the prime driver of that market recently. It was largely commodity (oil) driven earlier in the year.
The divergent monetary policy between Japan, EU and the US is very alarming for the markets.
Many experts believe that we have been at the end of our bull market since late 2014-Spring 2015. Good luck on predicting the markets.