Haha, Yvij-who is your brokerage? I'm with Think or Swim-tight spreads, great service and I can trade stock, options, futures and currencies with their platform.
The ticker for CBOT (Chicago Board of Trade) MINI gold is always /YG. The 100oz contracts are /ZG which is 100$ for every 1$ in Price of Gold (POG).
XAUUSD is spot gold, which is a different contract I think.
I looked up XAUUSD and it doesn't even load. What country are you from? Is XAUUSD a currency pair or something?
EDIT: WOW WHERE IS THE VOLUME FOR OUR BELOVED GOLD? This is looking scary..shorts, are you ready?!
if you want to trade, check out /ES or the other mini futures...gold is dead right now.