What is alex.gerko?

As an AI language model, I don't have access to up-to-date information about every individual in the world. However, I can tell you that Alex Gerko is the CEO and co-founder of XTX Markets, a London-based electronic trading company. He initially worked as a quant trader and software engineer for Deutsche Bank, Credit Suisse, and Goldman Sachs before starting his own business. According to Forbes, as of 2021, Alex Gerko has a net worth of $6.7 billion and is considered one of the wealthiest people in the world.