Financial regulation is an issue where differences between the EU and US are highly sensitive. Indeed, EU and US apply in a different manner the financial standards adopted at international level by the Basel Committee and have different systems of financial supervision. Due to these significant differences between the two systems, it is very difficult for the EU and US to reach an agreement on common financial standards within the TTIP negotiations. Actually, as the differences in regulation between the two systems are an obstacle to the access of the financial operators of each Party to the market of the other Party, the absence of common standards in this sector could nullify the efficacy of norms of market access that will be probably contained within the TTIP. Moreover, in a risk regulation perspective, considering the weight that the US and EU financial relationship have on the global system and taking account of the effect of destabilization that could be generated by the divergent requirements imposed to the credit institutions on the two sides of the Atlantic, the lack of common financial standards between the EU and US could have a great impact on global financial stability.