Ng Han Guan/ReutersAfter all the speculation and hype, the Bank of Japan ultimately ended up announcing only a small tweak to its policy on Friday. The bank said it would increase its exchange-traded fund purchases to an annual pace 6 trillion yen, up from its previous pace of 3.3 trillion yen. Moreover, it left its Japanese government bond purchases unchanged at an annual rate of 80 trillion yen and held its key interest rate unchanged at -0.1%. "There's always tomorrow," a HSBC team led by Frederic Neumann wrote in a note.