Hello, lenzinger, and welcome to this forum.
The answer to your question is:
C. another answer
In the retail spot forex market (our little corner of the foreign exchange market), there is no buying or selling of individual currencies, or of currency pairs. We all use the terms “buy” and “sell”, because it’s convenient to do so. However, it’s misleading for newbies, like yourself, who are trying to grasp the mechanics of this market.
When we use the term “buy”, we actually mean “go LONG” or “take a LONG position”. When we use the term “sell”, we actually mean “go SHORT” or “take a SHORT position”. You can see why it’s easier for lazy people, like us, to just say “buy” or “sell”.
The terms “buy” and “sell” are firmly imbedded in this business. Traders, brokers, analysts, and teachers all use those terms; and, except for newbies, they all know what those terms really mean when they use them.
Let’s talk about what a currency pair is, and what happens when you “buy” or “sell” one of them.
A currency pair is simply a price — it’s the price of one unit of the base currency, as quoted in the cross-currency. As such, you couldn’t “own” a currency pair, even you actually “bought” one — you can’t “own” a price.
The cross-currency is often called the quote currency, because the price of the base currency is quoted in terms of the cross-currency. When you see a price given for a currency pair, you are seeing the price (current exchange rate) for the base currency in terms of the cross-currency. If the price of the EUR/USD is quoted as 1.5000, this means that €1 = $1.50 at this moment.
When you buy (go LONG) the EUR/USD, you are speculating on a change in the price of the EUR/USD. Specifically, you are speculating that the price will rise — that is, that the value of the euro, as priced in U.S. dollars, will rise. This speculation is similar to a bet — which you place with your retail forex broker — in which the broker will credit a profit to your account if the EUR/USD price does, in fact, rise; and he will debit a loss to your account if the price falls. The amount of that profit, or that loss, depends (1) on the direction and extent of the EUR/USD price move, as measured in pips; (2) on the value of each pip in terms of your account currency, and (3) on the size of your position, in lots.
In your case, with a EUR/USD trade in an account denominated in AUD, the value of 1 pip would fluctuate throughout the duration of your trade. But, the value which matters to you is the value of 1 pip at the time your trade is closed.
Keep in mind that the price of the EUR/USD is a price in U.S. dollars ($1.50 in the example, above). And 1 pip, in this trade, is 1/10000 of one USD. So (assuming your trade was profitable), we want to know how many pips were earned, and how much each pip was worth in AUD at the time your trade was closed. Then, factoring in the size of your position (i.e., how many lots, or what fraction of a lot, you traded), we will have the amount of your profit in Australian dollars.
Notice that you didn’t buy any euro, or sell any U.S. dollars, in the course of this trade. So, when you hear someone say that “buying a currency pair means buying the base currency and selling the cross-currency”, just ignore that erroneous statement. What you actually did was speculate on an anticipated price move which unfolded as you expected, earning you a profit.
So, if you earned a profit, who took the loss? Your broker did, because he had the other side of your trade. That is, when you went LONG a certain number of lots of EUR/USD at a particular price with this particular broker, he automatically became SHORT the same number of lots of EUR/USD at the same price at the same time.
Your broker is your “counterparty” throughout the duration of your trade. He starts out on the other side of your trade, and he remains on the other side of your trade, until you close the trade. Your profit is his loss, and the money credited to your account, when the trade is closed, comes out of your broker’s pocket.
But, don’t cry over your broker’s loss. At the moment that you place your trade, your broker becomes exposed to the other side of your trade — that is, he becomes exposed to losses, if you start showing a profit. But, he has the option of hedging his position (thereby offsetting his exposure) by trading upstream with one of his liquidity providers (banks).
As an oversimplified example, if you are LONG one lot, and your broker doesn’t want to remain SHORT one lot, he simply BUYS one lot (of the same pair) from his liquidity provider. Now, he’s perfectly hedged; and changes in the price of that pair do not affect his P/L. He has given up the opportunity to profit from your loss, in order to avoid taking a loss due to your profit. He is no longer “trading against you”, and his profit on your trade will come from the spread only.
Earlier in this post, I mentioned that what we do in this market is similar to placing a bet on the direction of price. If you don’t like the close similarity between speculating and gambling, then you’ll have to work out those issues in your own mind, in accordance with your own values.
But, the fact remains that, in the retail forex market, we are all small speculators, with no commercial interest in the foreign currencies in which we speculate. We don’t buy currencies, we don’t sell currencies, and we don’t exhange currencies. Nor does our retail forex broker do any of those things.
Instead, we merely bet that the multi-national corporations, and the giant hedge funds, and the national governments, and the other entities which do have a commercial interest in these currencies will push prices one way, or the other — and we want a piece of their action.
So, we place bets on large, leveraged positions (which we probably couldn’t afford to acquire for cash), and we place these bets with a special sort of broker — a retail forex broker — who isn’t in the business of physical currency exchanges, but is in the specialized business of handling highly leveraged bets on currency price moves.