The interesting website I found today

https://www.dianzishuma.de/forex-vs-aktien-unterschied-zwischen-forex-und-aktien-ig-de/ 

https://www.computertalenta.de/forex-trading-tipps-f%C3%BCr-ihren-erfolg-beim-devisenhandel-finanzennet/ 

https://networknowledge.de/forex-trading-was-ist-das-forex-erklärt-cmc-markets/ 

The purchase and sale of international currencies takes place in a foreign exchange (FX) market. Banks and other financial institutions make up the largest percentage of participants, who trade on the FX market for a variety of reasons, including the following:

• Protecting themselves from loss because of changes in exchange rates

• Acquiring the foreign currency necessary to buy goods and services from other countries

Learn More

 (Comptroller's Handbook – Section 813, March 1990)
Provides background and guidelines for examiners responsible for evaluating a bank's foreign exchange activities

References

 (BC 216, September 1986)
Covers OCC policies concerning ownership of securities not denominated in U.S. dollars