Who Got The Golden Margin Call At The European Close?

Gold and silver prices are plunging after the European equity markets closed. It seems someone got the tap on the shoulder and needed to fund some liquidity. Given the 'unusual' strength in high-beta European assets this week, it would suggest someone (or many someones) were short and squeezed to cover in a hurry and perhaps this post-close dump in gold and silver reflects the final end-of-week realization of losses that need to be funded.

or is it post London physical close catch down in paper from the post-GDP move?