Buy Gold ETF
How the gold ETF (GLD) decide the price exactly?
There are two things to consider: keep the gold by the fund and its price – so the end of days (17:00) the background is ((number of gold) * Price) rich. But what if at 11 hours there is a huge demand to buy shares GLD super – by what is supply and demand phenomenon and the price should rise, simply because growth in demand – not the price of gold. How often are "repeat themselves" and how to deal with market prices (supply and demand for ETF shares) compared to the price of gold prices? Please answer only if you really understand and can provide a complete answer.
You are talking about the premium for the demand / supply trade mutual funds like stocks. This is a phenomenon widely understood / study. Not only GLD, but all of the Foundation and his PhD in closed end funds. 
Short answer. It is irrelevant to the fund itself. Its value is its value at the end of the day. What you (the investor) pay for it has zero impact, as you said, the price of assets – gold in this case. On the other hand the "great equalizer" is the structure that allows large blocks of ETF (closed-end funds, but not extreme) that are created and destroyed. As shown undoubtedly the booming market granddaddies today the Foundation, the market makers are rushing to buy and sell to close the gap between the value of the fund (the price of gold *) and price (last trade). Greed – or demanding – Easy money ensures a price structure that remains very close the value of every day, day after day. (The creation or destruction of the shares of an ETF are always held in the net asset value exactly)
GLD the Gold ETF – Buyer Beware and the new gold scandal
