I was double checking your RoA calculation.
For Cogent (ccoi) YQL finance says its 4.21% on 30 Sept 2013 but by my own calculation and YCharts the ROA for 30 Sept 2013 should be 0.6% or so.
Not sure if I can trust this data.
Can you provide some urls where you got that data? Once I have that I can forward it to the finance team.