The reason why the EURUSD took a big step lower in the past minutes is because Fitch has come out with a note in which it has assigned an AAA rating to the amended EFSF program. That in itself is not an issue, what is however, to the market is the announcement that a 50% Greek haircut would be an event of default. That said this is not to be confused with an ISDA determinations committee ruling that CDS has been triggered: we now know this will never happen and is the reason why basis trades across the board are exploding as all sovereign CDS is effectively being unwound. Regardless, the market does not seem to be liking the fact that someone's head is not stuck in the sand. Fitch also adds that it is critical that ECB carry on bond purchases, something which neither the ECB nor Germany have agreed to. It also adds that Greek PSI deal is a necessary step, and that the effectiveness of the summit deal depends on details. This is important considering Greece was barely able to get 85% acceptance in its 21% proposed haircut. The 50% will be even more interesting. Fitch concludes that the market is likely to see further market volatility. That is a given.