To clarify, I meant to say a wider spread, usually 2 ticks instead of 1, not wider margin.

Also, I seem to be alone on this, most people say look at the buy/sell pressure on 6E when trading M6E, but I look directly at M6E. 6E is used widely for hedging, so the buy/sell pressure is often backwards, e.g. there will be a lot of sell pressure in a rising market.

M6E is mostly just small guys, so in an up market it will have more buy pressure.

Good luck!
-Bob