Currency

EUR/USD
In this example euro is the base currency and thus the “basis” for the buy/sell.

If you believe that the US economy will continue to weaken, which is bad for the US dollar, you would execute a BUY EUR/USD order. By doing so you have bought euros in the expectation that they will rise versus the US dollar. If you believe that the US economy is strong and the euro will weaken against the US dollar you would execute a SELL EUR/USD order. By doing so you have sold euros in the expectation that they will fall versus the US dollar.

USD/JPY
In this example the US dollar is the base currency and thus the “basis” for the buy/sell.

If you think that the Japanese government is going to weaken the Yen in order to help its export industry, you would execute a BUY USD/JPY order. By doing so you have bought U.S dollars in the expectation that they will rise versus the Japanese yen. If you believe that Japanese investors are pulling money out of U.S. financial markets and coverting all their U.S. dollars back to Yen, and this will hurt the US dollar, you would execute a SELL USD/JPY order. By doing so you have sold U.S dollars in the expectation that they will depreciate against the Japanese yen.

GBP/USD
In this example the GBP is the base currency and thus the “basis” for the buy/sell.

If you think the British economy will continue to do better than the United States in terms of growth, you would execute a BUY GBP/USD order. By doing so you have bought pounds in the expectation that they will rise versus the US dollar. If you believe the British's economy is slowing while the United State's economy remains vibrant, you would execute a SELL GBP/USD order. By doing so you have sold pounds in the expectation that they will depreciate against the US dollar.

USD/CHF
In this example the USD is the base currency and thus the “basis” for the buy/sell.

If you think the Swiss franc is overvalued, you would execute a BUY USD/CHF order. By doing so you have bought US dollars in the expectation that they will appreciate versus the Swiss Franc. If you believe that due to instability in Iraq and in U.S. financial markets the dollar will continue to weaken, you would execute a SELL USD/CHF order. By doing so you have sold US dollars in the expectation that they will depreciate against the Swiss franc.

I don't have enough money to buy $10,000 EUR. Can I still trade?

You can with margin trading! Margin trading is simply the term used for trading with borrowed capital. This is how you're able to open $10,000 or $100,000 positions with $50 or $1,000. You can conduct relatively large transactions, very quickly and cheaply, with a small amount of initial capital.

Margin trading in the foreign exchange market is quantified in lots. We will be discussing "lots' more in-depth on our next lesson. For now, just think of the term "lot" as the minimun amount of currencies you have to buy. When you go to the grocery store and want to buy an egg, you can't just buy a single egg, they come in dozens or "lots" of 12. In Forex, it'd be foolish to buy or sell $1 EUR, they usually come in "lots" of $10,000 or $100,000 depending on the type of account you have.

For Example:
You believe that signals in the market are indicating that the British Pound will go up against the US Dollar. You open 1 lot ($100,000) for buying the Pound with a 1% margin at the price of 1.5000 and wait for the exchange rate to climb. This means you now control $100,000 worth of British Pound with $1,000. Your predictions come true and you decide to sell. You close the position at 1.5050. You earn 50 pips or about $500. (A pip is the smallest price movement available in a currency). So for an initial capital investment of $1,000, you have made 50% return. Return equals your $500 profit divided by your $1,000 you risked to trade.

Your Actions	GBP	USD	Your Money
You buy 100,000 pounds at the GBP/USD exchange rate of 1.5000	+100,000	-150,000	$1,000
You blink for two seconds and the GBP/USD exchange rate rises to 1.5050 and you sell.	-100,000	+150,500**	$1,500
You have earned a profit of $500.	0	+500

When you decide to close a position, the deposit that you originally made is returned to you and a calculation of your profits or losses is done. This profit or loss is then credited to your account.

We will also be discussing margin more in-depth in the next lesson, but hopefully you're able to get a basic idea of how margin works.