What is an effective way to convert large sums of US based investments to foreign currencies?
A stock, bond or ETF is basically a commodity. Where you bought it does not really matter, and it has a value in USD only inasmuch as there is a current market price quoted at an American exchange. But nothing prevents you from turning around and selling it on a European exchange where it is also listed for an equivalent amount of EUR (arbitrage activities of investment banks ensure that the price will be equivalent in regard to the current exchange rate). In fact, this can be used as a cheap form of currency conversion. For blue chips at least this is trivial; exotic securities might not be listed in Europe. All you need is a broker who allows you to trade on European exchanges and hold an account denominated in EUR. If necessary, transfer your securities to a broker who does, which should not cost more than a nominal fee. Mutual funds are a different beast though; it might be possible to sell shares on an exchange anyway, or sell them back to the issuer for EUR. It depends. In any case, however, transferring 7 figure sums internationally can trigger all kinds of tax events and money laundering investigations. You really need to hire a financial advisor who has international investment experience for this kind of thing, not ask a web forum!
would you say it's advisable to keep some of cash savings in a foreign currency? This is primarily opinion based.  Given that we live in a world rife with geopolitical risks such as Brexit and potential EU breakup There is no way to predict what will happen in such large events. For example if one keeps funds outside on UK in say Germany in Euro's. The UK may bring in a regulation and clamp down all funds held outside of UK as belonging to Government or tax these at 90% or anything absurd that negates the purpose of keeping funds outside. There are example of developing / under developed economics putting absurd capital controls. Whether UK will do or not is a speculation. If you are going to spend your live in a country, it is best to invest in country. As normal diversification, you can look at keep a small amount invested outside of country. 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. Cheaper and faster are usually mutually exclusive. If you want faster, nothing is faster than cash.  I would recommend using an ATM to withdraw cash from your USD account as Florints and then use as appropriate. If you want cheaper, then the cheapest currency conversion commonly available is foreign exchange / transfer services like OFX / XE Trade / Transferwise.  Turn around time on these can be as little as a business day or two but more commonly takes a few business days, but they typically offer the best currency exchange rates at the lowest cost.  If you must make regular payments to 3rd parties, you can set these services up to send the converted currency to a 3rd party rather than back to your own account. "I don't think this is ""curious"" at all.  A large part of Bitcoin's value is based on speculation currently, and since it's both a global currency and a relatively small one, global changes can greatly affect it without having a huge impact on the US Dollar (e.g., the article mentions that much of Bitcoin's trade, and therefore its value, is coming from Japan right now).  The symmetry you're looking for can also be deceiving when talking about currencies of dramatically different values.  The US M2 money supply is worth over $13 trillion (measuring in US Dollars).  The Bitcoin money supply is currently worth about $66 billion (also measuring in US Dollars).  If Bitcoin spiked 10% and the change in value was completely symmetric with the US dollar, the US dollar would fall in value by only 0.05% (i.e. move $6.6 billion in market cap from the USD to Bitcoin).  That's also greatly exaggerating the impact of changes in value of Bitcoin on the US Dollar since Bitcoin and the USD aren't the only currency pair in existence.  Far from it, in fact.  This is why you see, for example, the Venezuelan Bolivar tank against the US Dollar without feeling immensely more wealthy.  People in the US also tend to price things in USD, including foreign currencies, because that's what they're used to doing as they're most familiar with the value of a dollar from everyday experience." That's a broad question, but I can throw some thoughts at you from personal experience.  I'm actually an Australian who has worked in a couple of companies but across multiple countries and I've found out first hand that you have a wealth of opportunities that other people don't have, but you also have a lot of problems that other people won't have. First up, asset classes. Real estate is a popular asset class, but unless you plan on being in each of these countries for a minimum of one to two years, it would be seriously risky to invest in rental residential or commercial real estate. This is because it takes a long time to figure out each country's particular set of laws around real estate, plus it will take a long time to get credit from the local bank institutions and to understand the local markets well enough to select a good location. This leaves you with the classics of stocks and bonds. You can buy stocks and bonds in any country typically. So you could have some stocks in a German company, a bond fund in France and maybe a mutual fund in Japan. This makes for interesting diversification, so if one country tanks, you can potentially be hedged in another. You also get to both benefit and be punished by foreign exchange movements. You might have made a killing on that stock you bought in Tokyo, but it turns out the Yen just fell by 15%. Doh. And to top this off, you are almost certainly going to end up filling out tax returns in each country you have made money in. This can get horribly complicated, very quickly. As a person who has been dealing with the US tax system, I can tell you that this is painful and the US in particular tries to get a cut of your worldwide income. That said, keep in mind each country has different tax rates, so you could potentially benefit from that as well. My advice? Choose one country you suspect you'll spend most of your life in and keep most of your assets there. Make a few purchases in other places, but minimize it. Ultimately most ex-pats move back to their country of origin as friends, family and shared culture bring them home. I prefer to use a Foreign Exchange transfer service.  You will get a good exchange rate (better than from Paypal or from your bank) and it is possible to set it up with no transfer fees on both ends.  You can use an ACH transfer from your US bank account to the FX's bank account and then a SEPA transfer in Europe to get the funds into your bank account.  Transfers can also go in the opposite direction (Europe to USA). I've used XE's service (www.xe.com) and US Forex's service (www.usforex.com).  Transferwise (www.transferwise.com) is another popular service. US Forex's service calls you to confirm each transfer.  They also charge a $5 fee on transfers under $1000. XE's service is more convenient: they do not charge fees for small transfers and do not call you to confirm the tramsfer.  However, they will not let you set up a free ACH transfer from US bank accounts if you set up your XE account outside the US. In both cases, the transfer takes a few business days to complete. EDIT: In my recent (Summer 2015) experience, US Forex has offered slightly better rates than XE.  I've also checked out Transferwise, and for transfers from the US it seems to be a bit of a gimmick with a fee added late in the process.  For reference, I just got quotes from the three sites for converting 5000 USD to EUR: "To expand a bit on @MSalters's answer ... When I read your question title I assumed that by ""retirement funds"" you meant target-date funds that are close to their target dates (say, the 2015 target fund).  When I saw that you were referring to all target-date funds, it occurred to me that examining how such funds modify their portfolios over time would actually help answer your question. If you look at a near-term target fund you can see that a smaller percent is invested internationally, the same way a smaller percent is invested in stocks.  It's because of risk.  Since it's more likely that you will need some of the money soon, and since you'll be cashing out said money in US Dollars, it's risky to have too much invested in foreign currencies.  If you need money that's currently invested in a foreign currency and that currency happens to be doing poorly against USD at the moment, then you'll lose money simply because you need it now. This is the same rationale that goes into target-date funds' moving from stocks to bonds over time.  Since the value of a stock portfolio has a lot more natural volatility than the value of a bond portfolio, if you're heavily invested in stocks when you need to withdraw money, there's a higher probability that you'll need to cash out just when stocks happen to be doing relatively poorly.  Being invested more in bonds around when you'll need your money is less risky. Similarly, being more invested in US dollars than in foreign currencies around when you'll need your money is also less risky." "You might find some of the answers here helpful; the question is different, but has some similar concerns, such as a changing economic environment. What approach should I take to best protect my wealth against currency   devaluation & poor growth prospects. I want to avoid selling off any   more of my local index funds in a panic as I want to hold long term.   Does my portfolio balance make sense? Good question; I can't even get US banks to answer questions like this, such as ""What happens if they try to nationalize all bank accounts like in the Soviet Union?""  Response: it'll never happen. The question was what if! I think that your portfolio carries a lot of risk, but also offsets what you're worried about.  Outside of government confiscation of foreign accounts (if your foreign investments are held through a local brokerage), you should be good.  What to do about government confiscation?  Even the US government (in 1933) confiscated physical gold (and they made it illegal to own) - so even physical resources can be confiscated during hard times. Quite a large portion of my foreign investments have been bought at an   expensive time when our currency is already around historic lows,   which does concern me in the event that it strengthens in future. What   strategy should I take in the future if/when my local currency starts   the strengthen...do I hold my foreign investments through it and just   trust in cost averaging long term, or try sell them off to avoid the   devaluation? Are these foreign investments a hedge?  If so, then you shouldn't worry if your currency does strengthen; they serve the purpose of hedging the local environment.  If these investments are not a hedge, then timing will matter and you'll want to sell and buy your currency before it does strengthen.  The risk on this latter point is that your timing will be wrong."