Wasim Rehman, head of risk controls at the hedge fund manager Marshall Wace, has resigned from the partnership and plans to retire from the investment industry at the age of 28.

In a statement to the market this morning, Marshall Wace said Rehman would continue as a consultant to the company, initially full-time as chairman of the firm's quantitative oversight committee, but then becoming part-time and "thereby fulfilling his desire to pursue other opportunities outside of the industry".