I don't want to defend PV but it is possible that the MMs could become unintentionally short when a small cap like GLD moves quickly like it did last week. They keep on marking it up and just keep getting buyers in the main. So they could have been short but I am sure at the first sign of selling they would have got the price down to minimise their losses if that was true.
Therein lies the argument. I reckon Constellation are picking up the slack and hence no real downward movment. Just IMHO of course...