AMEX:SPY SPDR S&P 500 ETF
This is 2 hour chart. As you can see ,the levels we can identify are limited. You can't see change in momentum nearly as well as you can see off of the 1,3,5 & 15 min charts. Use your time frames wisely. The intermediate should give you some general targets, but the smaller will help you with the progression along the way to those targets.