The Japanese Yen has been very weak recently. The Yen has plunged by 9.6% since the start of the Ukraine Russian war.

Besides the Bank of Japan (BOJ) promise to print money to defend its interest yield, the surge in commodities prices is the most important factor affecting the Japanese Yen.

Japan, a manufacturing powerhouse, imported almost all the raw materials it needs. When commodities prices are going high, the JPY will turn weak, when commodities prices are going low, JPY will strengthen.

In contrast, although Australia is a developed nation, its economy is mainly made up of mineral export, agricultural exports, and energy export.

From the chart we plotted, you can see a high correlation between USD/JPY and the Bloomberg commodities index. As a result, you can use AUD/JPY to gauge whether commodities are still in an upcycle or started their downcycle. When AUD/JPY starts to move downtrend, it usually means the commodities cycle is turning downtrend too. On the other way round, you could also use the Bloomberg commodities index to position your trade for AUD/JPY.