- As the Bank of Japan said it would permit further increases in benchmark bond yields, the yen gained strength. Asian stocks were on track for a fourth day of losses as investors' concerns about the outlook for global inflation increased.

- BoJ maintained the same policy rate while raising the yield target's upper band limit to 0.5 percent. Since late October, the yen has been rising, and more recently, speculation of a shift away from ultra-loose policy has given it a boost.

- Chinese, South Korean, and Australian shares all fell, while Japanese shares barely increased. Investors in Hong Kong and the Chinese mainland were nonetheless concerned about reports of escalating disruptions from COVID breakouts.

- After the BoJ policy decision, US stock futures started to decline. On Monday, the S&P 500 ended at its lowest point in more than a month. A decline in the benchmark was caused by big-tech companies like Amazon.com Inc., Microsoft Corp., and Apple Inc.