I can't say better than Elitist Trader who posted a few minutes faster than me:Quote from Shagi:
I don't agree with the statement that he held $850million worth of Gold with $10million margin.
If he held calendar spreads ( short & long various maturities) then his overall net position was way less than $850million.
Example - If you are Long February Gold 2 Contracts and Short April Gold 3 contracts whats your net position?
Quote from Elitist Trader:
What a shit story, dont these reporters know anything about spread trading.
... and yes, it would be $850 mln position (in gold spread, not in gold).