Hi I was long on S&P futures with the view that S&P would have an opening gap down below 1220. S&P opened at 1226 but futures never got above 1218 before opening. Is an 8 pt gap betwen future and index unusual? Looks like a big arbitrage opportunity for someone. Was I just unlucky? Or am I missing something. Hope someone can give me some info on this matter. Thanks in advance.