10 things you need to know before the opening bell (spy, spx, qqq, dia, db, bud)

Here is what you need to know.
The Japanese yen is surging. The currency is stronger by 1.3% at 104.47 per dollar, a two-week high, as traders position themselves ahead of Friday's Bank of Japan policy meeting. "An imminent shift from fiscal tightening to loosening has reduced the pressure on the Bank of Japan to provide more stimulus, wrote Capital Economics' Japan Economist Marcel Thieliant. "However, the sharp appreciation of the exchange rate since the start of the year is threatening t