Investors (Hedge funds) are standing for delivery or being bought off by JPM (et al) for paper money. Then, the funds buy more the next month, knowing full well they can stand for delivery or be bought off. This can not continue for many more months before JPM is broke. See Max Keiser.
Not long ago, Max was campaigning for everyone in the world to buy at least 1 oz and break the bank.
It didn't work but did probably bruise em ...