While Greece suffers to the point of revolution and suicide, hedge funds made out like bandits on Greek sovereign debt.

Greece had reached its target of buying back enough bonds at a discount to retire 21 billion euros, or about $27 billion, of its debt. The bigger winners, though, were hedge funds, which pocketed higher profits than many had expected, in yet another Greek bailout financed by European taxpayers.

To some experts, this latest chapter in the long-running Greek drama is another reminder of how private investors have managed to outmaneuver European officials at various stages of the debt crisis. And they caution that each time it happens, future debt workouts in the euro zone will become even more costly.

When Europe wanted to give the Greek bond holders a hair cut, the hedge funds threatened collective action against a host of European countries. They wouldn't buy any European sovereign bonds in retaliation against the Eurogroup taking a hard line against them.

The warning was blunt: If Athens set off legal mechanisms in the bond contracts known as collective action clauses, forcing bondholders to accept lower prices, investors would stop buying the bonds of struggling European countries. That would be bad news for Spain and Italy — to say nothing of Portugal and Ireland when they return to global bond markets in 2013.

Moody's has proclaimed Greece defaulted.

Moody's Investors Service says that it considers Greece (C/no outlook) to have defaulted per Moody's default definitions further to the conclusion of an exchange of EUR177 billion of Greece's debt that is governed by Greek law for bonds issued by the Greek government, GDP-linked securities, European Financial Stability Facility (EFSF) notes. Foreign-law bonds are eligible for the same offer, and Moody's expects a similar debt exchange to proceed with these bondholders, as well as the holders of state-owned enterprise debt that has been guaranteed by the state, in the coming weeks. The respective securities will enter our default statistics at the tender expiration date, which is was Thursday 8 March for the Greek law bonds and is currently expected to be 23 March for foreign law bonds. Greece's government bond rating remains unchanged at C, the lowest rating on Moody's rating scale.

Moody's understands that 85.8% of debtholders holding Greek-law bonds issued by the sovereign have agreed to the exchange, with the vast majority of remaining bondholders likely to be drawn in following the exercise of Collective Action Clauses that will be inserted pursuant to a recent Act by the Greek parliament. The terms of the exchange entail a discount -- a loss to creditors -- of at least 70% on the net present value of existing debt.

Standard and Poor's finally did it.  They downgraded the credit rating of the United States from AAA to AA+.  There are serious questions about the reliability of S&P.  The White House pointed out that there is a $2 trillion error in the calculations used for the downgrade.  Ths is of interest since the two other agencies failed to change the AAA status of the US. (See S&P downgrades U.S.)

Jack Tapper of ABC News reported late this afternoon:

"A third official says that S&P made a "serious mistake" in its analysis, "based on flawed math and assumptions," so the Obama administration is pushing back. But even though "S&P has acknowledged its numbers are wrong, it's unclear what they're going to do.," the official said.

"S&P's numbers were off by "roughly $2 trillion," the official said.

Fitch and Moody's reaffirmed the AAA US rating earlier in the week.

In addition to the question raised about a mathematical error, there are substantial reasons to doubt S&P for any credit rating, let alone the sovereign debt of the United States  This material is from an article on April 25, 2011.  It is highly relevant to the situation at hand.