Take a stroll across any financial market's trading floor and what will you see? Computer screens. Keyboards. Crumpled paper cups. Wall-mounted clocks displaying the time in a dozen different cities... and of course, men. Why is this? Where other areas of finance have made slow but recognisable progress in developing a more diverse workforce, why has the world of trading been slow to progress? Could it be in trading that one gender is genuinely more adept than the other?