Remember back in early March when metals such as nickel were so red-hot that the exchange literally had to shut down? Well, sure enough it has completely retraced.

From tin to coffee and crude oil, a lack of supplies is creating a bull market in some commodities.

Here are the top-performing ETFs of 2021, up more than 245%, 140%, and 120% respectively.

Shipping, tin and natural gas looked good to investors this year; volatility, education, and China in general - not so much.

Commodities are on an unstoppable rally on reflation trade and a weaker greenback. Given this, we have highlighted the five best-performing zones and their ETFs halfway through second-quarter 2021: