KEY POINTS
  • The Bank of Japan reportedly conducted a foreign exchange check – a move seen as a precursor for a formal intervention.
  • HSBC says BOJ will prioritize maintaining its yield curve control policy instead
  • UBS says chances of shifting away from its current monetary stance especially low under BOJ governor Kuroda

The Japanese yen is hovering close to its weakest levels since 1998, and authorities have hinted at taking action to stem the currency's decline.

Ahead of Bank of Japan's rate decision later this week, CNBC takes a look at whether Japan's central bank might shift from its ultra-loose monetary policy, as the Federal Reserve maintains its hawkish stance, signaling more aggressive rate hikes to come.