The spread bets can easily be shorted offering total flexibility to the trader. Spread betting on individual shares works in the same way as spread market on any financial product. The spread better is offered a two-way price: the bid price and the ask price.
The foreign exchange market continues to be the largest market in the world. Every time, goods or services are changing hands, currencies keep changing hands. When goods or services are being exchanged between nations, then, the currency of one country is being exchanged for another.