From Nags to Riches
Well this shows how the prices can change is only  a few minutes.  BACK IN FOCUS has drifted out to 3.95 to lay, so I took that, even though I lost out a bit and will only make £24 on the arb.  But conversely, my £500 at William Hill now makes me £86, so by 14:05, I’ll be £110 richer and I’m committing just over £2,500, so my return is nearly 4.4%!