Commercials are always "net short" gold. They have the product, they want to hedge the downside to lock in a more steady profit. That is what corporations like...steady profits, rather than big wins and big losses, so they pay for this "profit insurance", i.e. a hedge.
But lately they have gone REALLY net short. And they are usually right, when gold is "overbought" whatever that means, by whatever measuring stick you are using.