Man United are a unique club in so many ways, not least because they are the only publicly traded club in England. When United first floated on the New York Stock Exchange in 2012, it was widely viewed as a measure to address the £400m-plus debt associated with the Glazers‘ leveraged buyout almost a decade earlier. And while that was demonstrably true, their listing on the largest trading market in the world is also an endorsement of the gravity of their brand. Around 22.5 per cent of the club is now publicly owned, which is just five per cent shy of the stake owned by Sir Jim Ratcliffe, now t…