investing - where to trade online? (Greek citizen)
You will likely need to open an account in another EU country, like a broker operating out of France, Britain or Germany, to get the best options.  If you are comfortable using an english language site and interface, I highly recommend Interactive Brokers as they let you trade in many markets simultaneously, have simple currency conversion, and great tools.  But, they are geared toward active traders so you might be better with a more retail oriented broker if you are new to trading stocks. There are many options.  Here is a list to start with: The Greek Piraeus Bank offers such services for trading stocks in Athens Stock Exchange (ASE) and in addition 26 other markets including NASDAQ, NYSE and largest European ones (full list, in Greek). Same goes for Eurobank with a list of 17 international markets and the ability to trade bonds. BETA Securities has also an online platform, but I think it's only for ASE. Some other banks (like National Bank of Greece) do have similar online services, but are usually restricted to ASE.
This very informative link gives a clear and comprehensive comparison (pros and cons) of various popular brokers: https://www.nerdwallet.com/blog/investing/best-online-brokers-for-stock-trading/ (Best Online Brokers for Stock Trading 2016) There are indeed some significant cons for the super-low commission fee. Just for a quick example, the Interactive Broker requires a minimum of 10k account balance, as well as the frequent trading activity even on monthly basis (or the minimum $10 commission would be charged). One other consideration. If you are a US citizen or Resident Alien, you are going to owe US income taxes regardless of where you earn the money. Here it is straight from the horse's mouth: Tax guide for US Citizens living abroad This is my list of emerging markets so far.  - Digital cash (cryptocurrencies) Potential triggers: Financial crisis. If there is an other financial crisis, it will probably be triggered by our banking system again. Consumer confidence will drop heavily. As result, people will search for other methods to keep their money stored (as in the greek banking crisis in 2008, where greek residents mass adopted Bitcoin.) - Alternative fuel Potential trigger: Our oil supply isn’t indefinite/endless. Sooner or later there must be an alternative sort of fuel to keep our on-oil-running-systems available. With the rise of demand in durability, this alternative fuel has to be very nature friendly (unlike diesel/oil/gasoline). Potential alternative:  Ethanol. - A better way to store power produced by solar power systems. Why?   Need for energy will grow because of the increasing amount of people on earth Cities are getting larger + more advanced. This results in an even bigger  There is a rise of intrest in green energy because of the world climate change. Potential trigger: Solar power is one of the most emerging markets at the moment.. Unfortunately we are still unable to store 100% of the empowered solarpower. In China only 20% of the electricity created by solar power machines  is useable. This is mainly because the power created is way bigger, than the abillity to store and transfer solar power. - Artificial intelligence (robot knowlegde) - An alternative for meat, which tastes just like regular meat  - Complete autofunctional busses. Potential trigger:  Shortage of busdrivers. Plus the advancements in robot technology will make it possible to put robots in function, on places where there is a shortage of humans. - Biotechnical-healthcare (the interference of robots in our healthsystem) - Alzheimer/Cancer medicine - Legalization of weed Potential trigger: Governance approval  - Virtual reality (gaming) Potential trigger:  The abillity to make the VR-gear affordable for every consumer. Increasing the amount of games available in VR. - The abillity to print everything with a 3D-printer, to reduce cost/staffexpenses and to increase efficiency - Africa "[...] are all bonds priced in such a way so that they all return the same amount (on average), after accounting for risk? In other words, do risk premiums ONLY compensate for the amount investors might lose? No. GE might be able to issue a bond with lower yield than, say, a company from China with no previous records of its presence in the U.S. markets. A bond price not only contains the risk of default, but also encompasses the servicability of the bond by the issuer with a specific stream of income, location of main business, any specific terms and conditions in the prospectus, e.g.callable or not, insurances against default, etc. Else for the same payoff, why would you take a higher risk? The payoff of a higher risk (not only default, but term structure, e.g. 5 years or 10 years, coupon payments) bond is more, to compensate for the extra risk it entails for the bondholder. The yield of a high risk bond will always be higher than a bond with lower risk. If you travel back in time, to 2011-2012, you would see the yields on Greek bonds were in the range of 25-30%, to reflect the high risk of a Greek default. Some hedge funds made a killing by buying Greek bonds during the eurozone crisis. If you go through the Efficient frontier theory, your argument is a counter statement to it. Same with individual bonds, or a portfolio of bonds. You always want to be compensated for the risk you take. The higher the risk, the higher the compensation, and vice versa. When investors buy the bond at this price, they are essentially buying a ""risk free"" bond [...] Logically yes, but no it isn't, and you shouldn't make that assumption." Any large stockbroker will offer trading in US securities. As a foreign national you will be required to register with the US tax authorities (IRS) by completing and filing a W-8BEN form and pay US withholding taxes on any dividend income you receive.  US dividends are paid net of withholding taxes, so you do not need to file a US tax return.  Capital gains are not subject to US taxes.  Also, each year you are holding US securities, you will receive a form from the IRS which you are required to complete and return. You will also be required to complete and file forms for each of the exchanges you wish to received market price data from. Trading will be restricted to US trading hours, which I believe is 6 hours ahead of Denmark for the New York markets.  You will simply submit an order to the desired market using your broker's online trading software or your broker's telephone dealing service. You can expect to pay significantly higher commissions for trading US securities when compared to domestic securities. You will also face potentially large foreign exchange fees when exchaning your funds from EUR to USD. All in all, you will probably be better off using your local market to trade US index or sector ETFs. You need 2 things One a Demat Account and second a Broker Account. If you need to trade online, then an agreement [Power of Attorney] between Your Saving Bank Account, the Demat Account and the Trading Account. So there are quite a few forms that need signature and proof of identify. Physical presence is required. "I think I understand what you're trying to achieve. You just want to see how it ""feels"" to own a share, right? To go through the process of buying and holding, and eventually selling, be it at a loss or at a gain.  Frankly, my primary advice is: Just do it on paper! Just decide, for whatever reason, which stocks to buy, in what amount, subtract 1% for commissions (I'm intentionally staying on the higher side here), and keep track of the price changes daily.   Instead of doing it on mere paper, some brokers offer you a demo account where you can practice your paper trading in the same way you would use a live account. As far as I know, Interactive Brokers and Saxo Bank offer such demo accounts, go look around on their web pages.  The problem about doing it for real is that many of the better brokers, such as the two I mentioned, have relatively high minimum funding limits. You need to send a few thousand pounds to your brokerage account before you can even use it. Of course, you don't need to invest it all, but still, the cash has to be there.  Especially for some younger and inexperienced investors, this can seduce them to gambling most of their money away. Which is why I would not advise you to actually invest in this way. It will be expensive but if it's just for trying it on one share, use your local principal bank for the trade.  Hope this gets you started!" You could go further and do a carry trade by borrowing EUR at 2% and depositing INR at 10%. All the notes above apply, and see the link there.