No dia 26 de Janeiro o ínicio do statement do FOMC dizia:

"Information received since the Federal Open Market Committee met in December confirms that the economic recovery is continuing, though at a rate that has been insufficient to bring about a significant improvement in labor market conditions."

Agora, no dia 15 de Março o tom do Fed foi totalmente mais otimista ao dizer:

"Information received since the Federal Open Market Committee met in January suggests that the economic recovery is on a firmer footing, and overall conditions in the labor market appear to be improving gradually."

Com a melhora na visão econômica do Fed a probabilidade de uma nova rodada de compras de títulos fica cada vez menor, podendo elevar os juros.