The plan involves the Standard and Poor's list of five hundred stocks.

VOA: special.2010.05.21

However,concerns about the stability of Greece , and other financially-troubled European countries, increased after the Standard and Poor's credit rating agency downgraded Greek bonds to speculative or "junk" status Tuesday.

VOA: standard.2010.04.28

But equities analyst Alec Young at Standard and Poor's says the declines are part of a normal market reaction.

VOA: standard.2010.05.21