John Arnhold Net Worth

John Arnhold's Journey: From High-Frequency Trading to Impact Investing John Arnhold, a Houston-based billionaire, stands apart from many of his peers in the city's energy sector. While traditional energy tycoons often maintain a strong focus on fossil fuels, Arnhold's path has been one of remarkable transformation. He's traded the high-stakes world of high-frequency trading (HFT) – a complex, algorithmic approach to financial markets – for the more impactful arena of impact investing....