S&P's Linda-Jane Coffin looks at which funds have consistently achieved an AAA rating for five consecutive years or longer.
Last week both Moody's Investor Services and Fitch Ratings said the emergency Budget is supportive of the UK's AAA rating.
With the BP crisis and a slowing UK economy further compounding an already delicate situation, investors are nervous.
Worthwhile opportunities in US equities might have been overlooked by investors. Most jumped on the emerging markets train, which now looks overcrowded and heading towards a market bubble.