Using a FOREX platform to actually change money
"FX trading platforms are not used for exchanging money, they are used for trading currencies. ""I know there are cheaper services like transferwise, charging about 0.5 %, but there is little/no control over the exchange rate, you just get the rate at the time of execution."" With FX trading you don't have control of the exchange rate either, just like the share market, FX markets are determined by supply and demand of one currency over an other. So an individual does not have control over the exchange rate but will just get the rate at the time of the trade being executed." If you wanted to spend money in another country, a specialist credit card would be the most cost-effective way. Near-spot exchange rate, zero-loading, no/low ATM fees. Likewise a pre-paid debit card would also allow for money transfer across borders. If this is the right situation, FOREX trading platforms are overkill to achieve a valid solution.
"In short, yes. By ""forward selling"", you enter into a futures contract by which you agree to trade Euros for dollars (US or Singapore) at a set rate agreed to by both parties, at some future time. You are basically making a bet; you think that the dollar will gain on the Euro and thus you'd pay a higher rate on the spot than you've locked in with the future. The other party to the contract is betting against you; he thinks the dollar will weaken, and so the dollars he'll sell you will be worth less than the Euros he gets for them at the agreed rate. Now, in a traditional futures contract, you are obligated to execute it, whether it ends up good or bad for you. You can, to avoid this, buy an ""option"". By buying the option, you pay the other party to the deal for the right to say ""no, thanks"". That way, if the dollar weakens and you'd rather pay spot price at time of delivery, you simply let the contract expire un-executed. The tradeoff is that options cost money up-front which is now sunk; whether you exercise the option or not, the other party gets the option price. That basically creates a ""point spread""; you ""win"" if the dollar appreciates against the Euro enough that you still save money even after buying the option, or if the dollar depreciates against the Euro enough that again you still save money after subtracting the option price, while you ""lose"" if the exchange rates are close enough to what was agreed on that it cost you more to buy the option than you gained by being able to choose to use it." "Buying physical gold: bad idea; you take on liquidity risk.  Putting all your money in a German bank account: bad idea; you still do not escape Euro risk.  Putting all your money in USD: bad idea; we have terrible, terrible fiscal problems here at home and they're invisible right now because we're in an election year.  The only artificially ""cheap"" thing that is well-managed in your part of the world is the Swiss Franc (CHF).  They push it down artificially, but no government has the power to fight a market forever.  They'll eventually run out of options and have to let the CHF rise in value." The only advantage of changing all your money now to the new currency is that you might get a better conversion rate now than later, so you get more of the new currency and you may pay a lower percentage fee for changing a larger sum of money. However, regarding the better conversion rate - you will not know this except with hindsight. The disadvantage of changing all at once is that if you have changed too much and need to change back to your own currency or a third currency, you will be charged fees and lose on the conversion rate twice. If you know how long you are going to be in the new country, say 12 months, maybe start by converting an amount you think you will be spending in a month. If you spend more then you can change a bit more the next month, or if you spend less change less the next month. If you find you are spending similar amounts for the next month or so, then you can budget on the amount you may be spending for the remainder of your stay and then convert this amount over. If you have a little left over at the end of your stay maybe reward yourself with something or buy a present for someone special back at home. If you need a little more, just convert this amount in the last month or so. Actually, yes. Two parties can write a contract and specify how money will change hands, it's called a swap. It's not unusual to write a contract that mimics an existing financial instrument. However, there are disadvantages to both sides to trading a swap rather than a more standard, liquid instrument, so usually it won't happen unless there's an excellent reason. Any time you are optimizing a portfolio, the right horizon to use for computing the statistics you will use for optimization (expected return, covariance, etc.) will be the same as your rebalance/trading frequency.  If you expect your trading strategy to trade once a day, you should use daily data for optimization.  Ditto for monthly or quarterly.  If at all possible you should use statistics across the board that are computed at the same frequency as your trading. Regarding currency pricing, I see no reason you can't take the reported prices and convert them to whatever currency you want using that day's foriegn exchange rate.  Foreign exchange rates are available for free at the Fed and elsewhere.  Converting prices from one currency to another is not rocket science. Since you are contemplating putting actual money behind this, note that using data to compute statistics is less reliable for lower statistical moments.  The mean (expected return) is the first moment, so using historical returns is extremely unreliable at predicting future returns.  The variances and covariances are second moments, they are better.  Skewness and kurtosis, yet better.  The fact that the expected return can't reliably be estimated from past returns is the major downfall of the Markowitz method (resulting portfolios are often very crazy and will depend critically on the data period you use to set them up).   There are approaches to fixing this, such as Black-Litterman's (1992) method, but they get complicated fast. If you're interested in slower scale changes, one option is to use indexes that value a common commodity in different currencies such as the Big Mac Index.  If a Big Mac costs more in AUD but stays the same in USD, then AUD have gone up. Disregarding leverage and things alike, I would like to know what's the difference between opening a position in Forex on a pair through a broker, for example, and effectively buy some currency in a traditional bank-to-bank transition The forex account may pay or charge you interest whereas converting your currency directly will not.  Disregarding leverage, the difference would be interest. This is called currency speculation, and it's one of the more risky forms of investing.  Unless you have a crystal ball that tells you the Euro will move up (or down) relative to the Dollar, it's purely speculation, even if it seems like it's on an upswing.  You have to remember that the people who are speculating (professionally) on currency are the reason that the amount changed, and it's because something caused them to believe the correct value is the current one - not another value in one direction or the other. This is not to say people don't make money on currency speculation; but unless you're a professional investor, who has a very good understanding of why currencies move one way or the other, or know someone who is (and gives free advice!), it's not a particularly good idea to engage in it - while stock trading is typically win-win, currency speculation is always zero-sum. That said, you could hedge your funds at this point (or any other) by keeping some money in both accounts - that is often safer than having all in one or the other, as you will tend to break even when one falls against the other, and not suffer significant losses if one or the other has a major downturn. The currency market, more often referred as Forex or FX, is the decentralized market through which the currencies are exchanged. To trade currencies, you have to go through a broker or an ECN. There are a lot's of them, you can find a (small) list of brokers here on Forex Factory. They will allow you to take very simple position on currencies. For example, you can buy EUR/USD. By doing so, you will make money if the EUR/USD rate goes up (ie: Euro getting stronger against the US dollar) and lose money if the EUR/USD rate goes down (ie: US dollar getting stronger against the Euro). In reality, when you are doing such transaction the broker: borrows USD, sell it to buy EUR, and place it into an Euro account. They will charge you the interest rate on the borrowed currency (USD) and gives you the interest and the bought currency (EUR). So, if you bought a currency with high interest rate against one with low interest rate, you will gain the interest rate differential. But if you sold, you will lose the differential. The fees from the brokers are likely to be included in the prices at which you buy and sell currencies and in the interest rates that they will charge/give you. They are also likely to gives you big leverage to invest far more than the money that you deposited in their accounts. Now, about how to make money out of this market... that's speculation, there are no sure gains about it. And telling you what you should do is purely subjective. But, the Forex market, as any market, is directed by the law of supply and demand. Amongst what impacts supply and demands there are: Also, and I don't want to judge your friends, but from experience, peoples are likely to tell you about their winning transaction and not about their loosing ones. What is the point of this? Can't I achieve the exact same effect and   outcome by exchanging currency now and put that amount of USD in a   bank account to gain some interest, then make the payment from one   year from now? This is for companies, not individuals. Companies usually take loans, because they think they can make more money (e.g. 10%*) than the interest on the loan (e.g. 5%*). Putting money on a bank account to earn interest there would give them even less (e.g. 1%*). So with your option, instead of earning 10%* interest, they'd earn 1%* interest. If the cost of the currency forward is less than these 9%* difference, the forward saves them money. If they have excess cash and they don't know how to invest that money, your option may be preferable *Simple numbers chosen for simplicity, not accuracy. I just tried doing that on my PP which is in the Netherlands, I have added a USD bank account (from my dutch bank) and they sent the verification amount in Euros, I called the bank and wonder why they didn't let me choose account currency they said it's not possible and if I cashout Dollars that I have in my PP (cause we usually do international business so we set it to dollars) it will be changed to Euros, So we decided to keep the dollars in account to pay our bills instead of getting ripped off by PayPal in xchange rates. "Currencies that are pegged or fixed require that foreign currencies are held by the central issuer at a proportional amount. This is analogous to having a portfolio of currencies that the central bank issues shares from - in the form of its own currency. We will continue with this analogy, if the central bank says these ""shares"" are worth $1, but the underlying components of the portfolio are worth $0.80 and decreasing, then it is expensive for the central bank to maintain its peg, and eventually they will have to disregard the peg as people start questioning the central bank's solvency. (People will know the $1 they hold is not really worth what the central bank says it is, because of the price changes people experience in buying goods and services, especially when it comes to imports. Shadow economies will also trade using a currency more reflective of labor, which happens no matter what the government's punishments are for doing so). Swiss National Bank (central bank) did this in early 2015, as it experienced volatility in the Euro which it had previously been trying to keep it's currency pegged to. It became too expensive for it to keep this peg on its own. The central bank can devalue its currency by adjusting the proportions of the reserve, such as selling a lot of foreign currency X, buying more of currency Y. They can and do take losses doing this. (Swiss National Bank is maintaining a large loss) They can also flood their economy with more of their currency, diluting the value of each individual 1 dollar equivalent. This is done by issuing bonds or monetizing goods and services from the private sector in exchange for bonds. People colloquially call this ""printing money"" but it is a misnomer in this day and age where printers are not relevant tools. The good and service goes onto the central bank's balance book, and the company/entity that provided the service now has a bond on its book which can be immediately sold to someone else for cash (another reading is that the bond is as good as cash). The bond didn't previously exist until the central bank said it did, and central banks can infinitely exchange goods and services for bonds. Bond monetization (also called Quantitative Easing) is practiced by the Federal Reserve in the United States, Bank of Japan, European Central Bank and now the Central Bank of the Republic of China" Your assumption that funds sold in GBP trade in GBP is incorrect. In general funds purchase their constituent stocks in the fund currency which may be different to the subscription currency. Where the subscription currency is different from the fund currency subscriptions are converted into the fund currency before the extra money is used to increase holdings. An ETF, on the other hand, does not take subscriptions directly but by creation (and redemption) of shares. The principle is the same however; monies received from creation of ETF shares are converted into the fund currency and then used to buy stock. This ensures that only one currency transaction is done. In your specific example the fund currency will be USD so your purchase of the shares (assuming there are no sellers and creation occurs) will be converted from GBP to USD and held in that currency in the fund. The fund then trades entirely in USD to avoid currency risk. When you want to sell your exposure (supposing redemption occurs) enough holdings required to redeem your money are sold to get cash in USD and then converted to GBP before paying you. This means that trading activity where there is no need to convert to GBP (or any other currency) does not incur currency conversion costs. In practice funds will always have some cash (or cash equivalents) on hand to pay out redemptions and will have an idea of the number and size of redemptions each calendar period so will use futures and swaps to mitigate FX risk. Where the same firm has two funds traded in different currencies with the same objectives it is likely that one is a wrapper for the other such that one simply converts the currency and buys the other currency denominated ETF. As these are exchange traded funds with a price in GBP the amount you pay for the ETF or gain on selling it is the price given and you will not have to consider currency exchange as that should be done internally as explained above. However, there can be a (temporary) arbitrage opportunity if the price in GBP does not reflect the price in USD and the exchange rate put together. Is there not some central service that tracks current currency rates that banks can use to get currency data? Sure.  But this doesn't matter.  All the central service can tell you is how much the rate was historically.  But the banks/PayPal don't care about the historical value.  They want to know the price that they'll pay when they get around to switching, not the last price before the switch.  Beyond that, there is a transaction cost to switching.  They have to pay the clearinghouse for managing the transaction.   The banks can choose to act as a clearinghouse, but that increases their risk.  If the bank has a large balance of US dollars but dollars are falling, then they end up eating that cost.  They'll only take that risk if they think that they'll make more money that way.  And in the end, they may have to go on the currency market anyway.  If a European bank runs out of US dollars, they have to buy them on the open market.  Or a US bank might run out of Euros.  Or Yen.  Etc.   Another problem is that many of the currency transactions are small, but the overhead is fixed.  If the bank has to pay $5 for every currency transaction, they won't even break even charging 3% on a $100 transaction.  So they delay the actual transaction so that they can make more than one at a time.  But then they have the risk that the currency value might change in the meantime.  If they credit you with $97 in your account ($100 minus the 3% fee) but the price actually drops from $100 to $99, they're out the $1.   They could do it the other way as well.  You ask for a $100 transaction.  They perform a $1000 transaction, of which they give you $97.  Now they have $898 ($1000 minus the $5 they paid for the transaction plus the $3 they charged you for the transaction).  If there's a 1% drop, they're out $10.98 ($8.98 in currency loss plus a net $2 in fees).   This is why banks have money market accounts.  So they have someone to manage these problems working twenty-four hours a day.  But then they have to pay interest on those accounts, further eating into their profits.  Along with paying a staff to monitor the currency markets and things that may affect them. It depends on the currency pair since it is much harder to move a liquid market like Fiber (EURUSD) or Cable (GBPUSD) than it is to move illiquid markets such as USDTRY, however, it will mostly be big banks and big hedge funds adjusting their positions or speculating (not just on the currency or market making but also speculating in foreign instruments). I once was involved in a one-off USD 56 million FX trade without which the hedge fund could not trade as its subscriptions were in a different currency to the fund currency. Although it was big by their standards it was small compared with the volumes we expected from other clients.  Governments and big companies who need to pay costs in a foreign currency or receive income in one will also do this but less frequently and will almost always do this through a nominated bank (in the case of large firms).  Because they need the foreign currency immediately; if you've ever tried to pay a bill in the US denominated in Dollars using Euros you'll know that they aren't widely accepted. So if I need to pay a large bill to a supplier in Dollars and all I have is Euros I may move the market. Similarly if I am trying to buy a large number of shares in a US company and all I have is Euros I'll lose the opportunity.