The idea being that the band held as support throughout much of 2014 and was confirmed repeatedly as resistance. A 2 year S&R band will not break easily. I noticed some similarities around the band with what is happening recently and I like the idea of taking the chart from the spring/summer of 2014 and reversing the to predict the future movement.
Combine this analysis with natural swings in any market and the coming slow holiday period (Chinese New Year) and I think there is an excellent chance we will see the 300's again (possibly the low 300s) before finally breaking out into the next bubble in the spring of 2016.
Good luck happy trading.