5 gold futures contracts??

looking on IB I found 5 gold futures contracts (us-based) not sure if there are more?

ZG nyseliffe full size
8Q nymex emini 1/3
MGC nymex emicro 1/10
QO nymex miny 1/2
GC nymex full size

so the full sized GC is obvious but what bout the others? why does nymex have so many? which is the preferred mini to trade? I typically trade CL and QM (mini CL) and was looking for the same in gold.

Thanks
B
 
GC is it. For all the others volume is low and consequently the spread is painfully wide, like an overzealous gynecologist cranking a speculum wide. If your horizon is wider than a contract's duration, you might look at the ETF GLD. Spread is usually a penny.
 
Quote from Arthur Deco:

GC is it. For all the others volume is low and consequently the spread is painfully wide, like an overzealous gynecologist cranking a speculum wide.

Hahaha

Made my day:D
 
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