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

How can I buy an ETF?
First of all, you'll need a securities account. Nowadays, most large banks offer this as a standard product for all their customers, though it may require some extra paperwork. Then you need to buy shares in the ETF. This is indeed typically done through the stock market, but there are alternatives. Some banks will sell securities to you directly, but usually only those they create themselves (options and such). Some also offer ETF investment plans that allow you to buy shares for a fixed amount each month through the bank. In any case, the bank's online banking interface should support all these options. However, fees are an important consideration! With some banks, the securities account is free, others charge an annual fee. And the fees on stock market transactions and investment plans also vary considerably, so it could be worth it to consider some alternatives.