NEW YORK (ETF Expert) -- Should you buy when there is blood in the streets? While the prospect of buying low may sound great, a beaten-up asset can always get battered some more. There's no certainty when it comes to recognizing precisely when the bludgeoning will stop or when the knife will hit the floor.
There are times, however, when enough evidence comes to the forefront to make a rational re-entry. For example, few asset classes received as much "hate mail" as emerging market debt in the May-June tapering swoon of 2013. Whereas U.S. intermediate bonds may have witnessed a 7%-8% drop from the high to the low, exchange-traded funds such as PowerShares Emerging Market Sovereign Debt (PCY) experienced an 18% bashing.
Since late June, many investors have been wading back into the volatile waters. While the recovery has been inconsistent at best, the current price of PCY is within spitting distance of a long-term 200-day trendline. The 30-day SEC yield of 5% appears to be enticing income hunters. What's more, in the first few weeks of 2014, emerging market sovereign nations have collectively sold nearly $19 billion in bonds. According to Dealogic, that represents three times the amount sold at the beginning of last year.
Commodities are another asset class that have been struggling mightily. Unlike the rate spike that pounded emerging market bonds, the nearly three-year downtrend on iPath DJ Total Commodity (DJP) can be linked to global deflationary scares. Yet, both asset types experienced dramatic price declines as investors stampeded for the exit doors; in truth, if you are holding onto the wrong "stuff" at the wrong time, you're likely to get bruised, bashed and bloodied.
Some publicly traded commodities are making a comeback, though. Cocoa had lost nearly 44% in value in a two-year bearish period (April 2011-March 2013). Since then, the tide has changed considerably. Not only has iPath Pure Cocoa (CHOC) moved 30% higher off of its 2013 lows, but the current price is roughly 10% above its 200-day moving average.
So how might an investor judge whether a new long-term uptrend is for real? Might the price movement be yet another head fake in a viciously deceptive deflationary cycle?
Still, if one combines technical price movement with fundamental data, he/she can make an educated decision about an investment's potential. According to the European Cocoa Association, European chocolate makers increased their processing of cocoa by 6.2% in the final three months of 2013. That data point far exceeded expectations. With traders responding favorably to the data on the chocolate-making ingredient, CHOC may very well make a powerful run at earlier highs set back in 2011.
Even when fundamental data and technical price movement support the notion that an asset type has upside potential, I recommend the use of stop-limit loss orders and/or low-correlating assets. "Stops" can minimize the possibility of large losses while low-correlating assets can reduce portfolio volatility.
This article represents the opinion of a contributor and not necessarily that of TheStreet or its editorial staff.