here are monthly Gann angles for the Dow. Scale 100 so for example 2x1 is 200 points per month

looks to me like the 1x1's formed a nice channel and we just had an overthrow.The 4x1 has provided nice support for this rally

 the May 2011 high was 12876. The 1x1 from there (100 points per month) was at 15276 this month, 24 months later