Gold is down.

Silver is down, too.
I would guess those holding gold/silver/bitcoin sold off to produce more liquidity for themselves or its a form of price manipulation.
If the two italian banks in bankruptcy held gold/silver/btc and sold off their holdings to payoff their debts, that might make sense.
With all due respect, gold is down about 1% only whereas Bitcoin is down a whopping 4%. That is a massive, massive difference. If Gold dropped 4% in one day, the entire world would be talking about it. Anyways, we were in a massive bubble so it isn't surprising at all this happened.
And as i noticed most altcoins also are falling in there prices just this morning almost all are in negative rate. But i think this is just but normal albeit most altcoins too increase. But for me it is a good thing to have the chance to at least try buying coins for future price increase.