At the beginning of February, the US stock markets, followed by the financial markets of the rest of the world, experienced a violent correction. In two days, the Dow Jones Index erased its January gains and entered a downward spiral. Since then, the financial world has been looking feverish. The correction developed its own momentum, due, particularly, to the impact of new volatility derivatives. However, its real starting point was on February 2nd, when the January trend of hourly wage growth was published; it rose by 2.9% after 2.6% last December. That acceleration caused the market to fear a faster monetary tightening than expected in the United States and, consequently, a slowdown in economic growth. After nine years of continuous rise – one of the longest in Wall Street history – the US market is now getting overvalued and, consequently, any downward growth revision immediately translates into massive profit taking..