When you watch the ticker for the "Spot Price of Gold," you assume you are watching the price of actual, physical yellow metal. In reality, you are mostly watching the price of a digital illusion known as Paper Gold.
What is Paper Gold?
Paper gold refers to financial derivatives—specifically futures contracts traded on the COMEX in New York. When a hedge fund "buys 100 ounces of gold," they aren't taking a truck to a vault. They are simply buying a legal contract that promises the delivery of 100 ounces of gold at a future date.
However, 99% of these contracts are never settled in physical metal. Before the contract expires, the traders simply settle the difference in cash. It is essentially placing a bet on the price direction without ever touching the metal.
The Leverage Problem (Fractional Reserve Gold)
Because almost no one asks for physical delivery, the exchanges allow banks to sell vastly more gold contracts than the physical gold they actually hold in their vaults.
At times, the ratio of "Open Interest" (paper contracts) to "Registered Physical Gold" in COMEX vaults has reached 100 to 1. This means for every 1 real ounce of gold sitting in a vault, 100 people hold a piece of paper claiming they own it.
The Risk of a Short Squeeze
This system works flawlessly as long as investors just want to speculate for cash profits. But what happens during a severe global crisis (like a banking collapse)?
If panic ensues and suddenly 10% of those paper contract holders demand physical delivery instead of cash settlement, the exchange would default. There isn't enough physical gold on earth to satisfy all the paper claims. This fear of a physical "Run on the Bank" is why hardcore investors refuse to buy gold ETFs or futures, opting strictly for physical coins and bars stored in their personal possession.