Several factors have been in play that has boosted commodity prices over the last several months. These include unusually cold weather patterns, rebounding support for precious metals, and stabilizing interest rates. As a result, DJP has found a tailwind that is picking up strength.

Copper is the only one of the top five holdings in DJP that has not been able to arrest its price decline this year. The lack of demand in Asia is seen as the primary contributor to this fall and could indicate a bleak outlook for China as well as other key consumers of this industrial metal. The iPath Dow Jones-UBS Copper Subindex Total Return ETN (JJC) is a pure play on the copper futures market that tracks the daily price movement.

Right now, commodities appear to be at a crossroads and investors will likely be swayed based on their outlook for global growth and consumption. A perfect environment for commodities to extend their rally would be a situation where there are high inflationary expectations combined with a pickup in demand of high growth nations like emerging markets. Remember that in soft commodities, weather patterns and other risk factors can also weigh on the supply side of the equation as well.

On the flip side, stagnant consumption will likely lead to an extended period of meager returns for commodities as a whole.

Growth investors may benefit by having some token exposure to this asset class in the context of a diversified investment strategy. The fact that commodities offer a unique non-correlated return profile may play a factor in your asset allocation strategy. Income investors, on the other hand, will probably not reap the benefits of commodities to the same extent because they don't offer any yield.

From an investment perspective, I prefer to access commodities through the form of an exchange-traded note in order to side-step the tax headache of a K-1 that is generated from an exchange-traded fund such as the PowerShares DB Commodity Index Tracking Fund (DBC). The structure of an ETN differs from an ETF in that it is a debt instrument that is issued by a bank such as Barclays instead of a more traditional pool of assets that invests directly in the underlying commodity. It essentially offers you the ability to track the daily price movement of a given index without taking on the tax implications that futures markets dictate.

The bottom line is commodities should be back in the conversation and deserve a second look this year as prices have found some support. Additional opportunities will likely present themselves in this arena that tactical investors can use to their advantage.

At the time of publication the author had no position in any of the stocks mentioned.

This article represents the opinion of a contributor and not necessarily that of TheStreet or its editorial staff.

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