BullionVault is open-ended. An inbound or outbound armoured delivery is run whenever there are several bars to collect or deliver. Usually this is about twice a week.
BullionVault itself is the main user of this open-ended structure, which lets us manage our own inventory to act as a buffer between the smaller investment sizes typical of retail investors, and the larger settlement quanta of the professional bullion market.
However any BullionVault user who wishes to make or take delivery of 1 bar of gold (400 oz), a half pallet of silver (16,000 oz) or a minimum of 4 bars (18.66 kg) of platinum or palladium can use the same open-ended nature of the system by settling their professional spot market trades directly into or out of the vault.