You can trade all kinds of things, including foreign exchange, stocks and CFDs, bonds, indexes,  commodities including gold and oil, and also make 'bets' on what a particular market will do in the future. This is pretty much what the big Investment Banks do in their proprietary trading, although they are a bit more sophisticated. As with the Banks there is a lot of money which can be made (or lost) if you are not careful. Always remember to use "stop-losses" on positions. And never trade a position which you are not watching.

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