CFD trading and spread betting are leveraged products, enabling you to open a position with a fraction of the full value of the trade. In other words you could gain a large exposure to a financial market while only tying up a relatively small amount of your capital. Just remember that while this can magnify your profits, it can have the same effect on your losses.
Also, because there's no need to deal with an exchange, you could be set up and ready to trade much more quickly.
In fact, with IG, you could be trading in less than five minutes, with our simple application form and instant online verification.