In fact, you can invest in overseas markets and even hold a foreign investment portfolio from the comfort of your own home. Simply put, a foreign portfolio investment is a type of investment that an investor registers overseas. Just as with domestic investment portfolios, international investment portfolios can include a range of assets. But before we explore the benefits of overseas investments, we need to understand how they work. Therefore, the individual investor does not need to worry about choosing specific stocks to include in their international investment portfolio.