jp morgan commodity index rebalancing

"In financial terms, we expect the rebalancing to have the greatest impact in gold, COMEX copper, crude oil, gold, and live cattle. We estimate that the rebalancing of the two indices is expected to result in $877 million of selling in gold, $699 million of buying in COMEX copper, $528 million of selling in live cattle, and $523 million of buying in crude oil."
http://ftalphaville.ft.com/blog/2009/01/05/50769/beware-commodity-index-rebalancing-ahead/

With that amount of shorts in Gold it makes sense for them to "rebalance" their index.
The day will come, when tey have to pay ...