"What happens when the loss is with the SB and the profits in the market!!!!!"
I guess one would be in the proverbial Poo ? Maybe RobinT's just happened to pan out in the most tax advantageous way. Luck rather than judgement, possibly ?
"Market flying..."
On what basis do IG manage to quote the market when all instruments (index & futures) are closed ? Supply / demand springs to mind, but then not a great deal of either after hours, I suspect.