Copper. Copper prices are at their highest levels in 13 months, thanks to both a drooping dollar and concerns about supply of the metal. Prices have doubled this year, mostly because China stepped up its demand as its economy recovered. Analysts also predict that copper will be the top performer among base metals. (Where copper is going).

  • iPath Dow Jones AIG Copper TR Sub Index ETN (NYSEArca: JJC): up 81.3% since low; up 112.7% year-to-date

Commodities have been on a hot streak, but as we’ve learned from recent bubbles, it’s wise to have an exit strategy in the event of a correction. You can read more about strategies here.

For full disclosure, Tom Lydon’s clients own shares of IYM.

Max Chen contributed to this article.