Definition: In models of asset trading, a noise trader is one who doesn't have any special information but trades for exogenous reasons;
e.g., to raise cash, or more likely lose cash or just perhaps wanting to liquidate a position!
Such traders make a market liquid for "real" traders; that is, they give a given trader someone to exchange with.
ie: A Hot Copper Trader that could be a "noise trader" often talks about a "great stock buy", however perhaps in real life, is actually selling out.....lol............ ------------------------------