Certificates are investment products that allow investors to speculate on the development of various markets (stocks, commodities, currencies, etc.) without having to buy these assets directly. They can offer attractive returns but also carry risk. It is important to understand how they work and consider whether they are suitable for you. There are different types such as Index or Participation Certificates tracking the performance of an index. Turbo certificates, which allow investors to profit from short-term price movements in financial markets, or bonus certificates, which offer the chance to earn a bonus if the price of the underlying asset never falls below a certain threshold (barrier).