Japan's yen had a rollercoaster week. Here is what happened

The Japanese yen reached its highest level against the US dollar since 1990 but later strengthened amid speculation of intervention from Japanese authorities. The currency then experienced a further strengthening on Wednesday, potentially due to intervention. Analysts estimate that the first suspected intervention could have been between 5 trillion and 6 trillion yen. The yen had previously weakened but rebounded and is now trading at 152.90 against the dollar. While the Japanese government has not confirmed its role in the currency’s support, many believe further intervention is likely. A weaker yen is seen as beneficial for the country’s economy.