Hong Kong and Shanghai soared Friday (Oct 18) to lead gains across most Asian markets after Chinese growth beat forecasts and officials flagged fresh measures to boost the world's number two economy.

Markets this week are riding on a wave of optimism following announcements from various other central banks and stimulus measures. 

How have these developments impacted the commodities markets? Yeap Junrong, Market Strategist at IG, shares more on gold, silver and oil commodities, and an update on  currencies including the SGD / JPY currency pair, which has caught his attention.