Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Pros/cons of borrowing money using a mortgage loan and investing it in a low-fee index fund?
Something very similar to this was extremely popular in the UK in the late 1980s.  The practice has completely vanished since the early 2000s.  Reading up on the UK endowment mortgage scandals will probably give you an excellent insight into whether you should attempt your plan. Endowment mortgages were provided by banks and at their peak were probably the most popular mortgage form.  The basic idea was that you only pay the interest on your mortgage and invest a small amount each month into a low fee endowment policy.  Many endowment policies were simply index tracking, and the idea being that by the end of your mortgage you would have built up a portfolio sufficient to pay off your mortgage, and may well have extra left over. In the late 1990s the combination of falling housing market and poor stock performance meant that many people were left with both the endowment less than their mortgage and their house in negative equity.