Don't do that! What happens when you buy a share? You own the share.. and the price went up - a little. If you buy cfds you won't own a share. You'll have no voting right. The share price doesn't increase because of your buying.. in the end your buy will perhaps depress the price as the opposite side of the cfd deal will try to depress the real share price. Don't be greedy. I owned many mining stocks and even today I feel strong emotions for the time when I voted against the Anglogold offer for Normandy and for the Newmont offer creating the best gold miner in the world. Owning real shares and using the voting rights is a much more fullfilling experience.
Capital markets aren't for greedy speculators only looking for profit. You make a profit only when you give a service. The service of a speculator is to flatten price upswings and downswings. Buy when wheat is cheap - price rises and the farmers will grow more wheat - sell when prices are high (indicating there is too much wheat) and farmers will grow less. You'll make a profit. But buy when prices are high - you'll create even higher prices damaging the economy. poor people wiull have to pay higher prices, farmers will grow more wheat and the following price downswing will be more severe. You will be punished by the markets by making a loss. That's how capital markets work: steer the economy.