Who is richer George Soros or the Koch Brothers?

As of my last knowledge update in October 2023, George Soros has a net worth estimated at around $8.6 billion, while the Koch brothers, particularly Charles and David Koch, have a combined net worth that has been reported to be significantly higher, often exceeding $100 billion. Therefore, the Koch brothers are considerably richer than George Soros. However, net worth can fluctuate due to various factors, so current estimates may vary.