As we have noted previously, The Bank of Japan (BoJ) is one of a handful of central banks that trade on global stock markets. The finance ministry holds a 55% stake of the Jasdaq-traded security, which as one analyst noted “seems like an odd investment.” However, it appears BoJ shares serve a different purpose – to signal an imminent easing to the market. As Bloomberg reports, BoJ stock has surged almost 30% in the last few days on very heavy volume…