It's not often this can be said given the fleeting nature of the British summer, but the outlook in September is looking better than it was in June – June 24 to be precise.

Whatever the likely long-term impact of the Brexit decision, there was general agreement that the economic storms caused by the vote would mean companies and investors would batten down the hatches rather than do deals. Slumping UK share prices would cast a chill over corporate plans and the likely downgrade of the UK's sovereign debt rating would send a shiver through the bond market.