If one has a more short term trade horizon, it is good to look at the daily average true range of the pair divided by the spread- the more times...
The CAC has held up very well in recent months and has traded quite well technically while the Dax has been quite choppy trading within a broad...
The CME are already banking on these micro contracts with the equivalent commission much higher then the minis when using a multiplier of 10.
http://m.dw.com/en/fire-shuts-down-europes-largest-oil-refinery-in-the-netherlands/a-39897686
Separate names with a comma.