The DB USD Index Bullish ETF (UUP) is composed solely of long USDX futures contracts. The USDX futures contract is designed to replicate the performance of being long the US dollar against the following currencies:

• Euro
• Japanese yen
• British pound
• Canadian dollar
• Swedish krona
• Swiss franc

As mentioned, the fund has seen a significant uptick in recent months. To put things in perspective, below is a chart of DB USD Index Bullish ETF since 2007, before the financial crisis (data as of 2/13/2015):

UUP’s price is nearing its all-time high of $27.08, gained back in November of 2008. Since bottoming out in 2011, however, the fund traded in a narrow range up until mid-2014, when it skyrocketed from about $21.30 a share to approximately $25.00 a share. While a range of $4.00 may not seem significant, in currency markets this has significant and material impact on much broader macroeconomic factors.

While a stronger U.S. dollar may seem beneficial for the domestic investor and/or consumer, there are some significant implications of a rising dollar that investors need to understand:

• A stronger dollar makes U.S. investments look more attractive relative to non-dollar investments.
• U.S. consumer purchasing power increases abroad, meaning foreign goods and services will be priced cheaper thanks to a higher exchange rate. This also applies to businesses purchasing (or acquiring) foreign assets.
• In contrast, a rising dollar makes U.S. goods and services more expensive for foreign consumers.
• Commodity prices are poised to fall, since a strong dollar causes importers to pay more for the U.S. dollars to buy U.S. commodities.

Already, we’ve seen the consequences of a rising dollar; on Friday, the Labor Department reported that U.S. import prices have fallen 2.8% from December, the biggest decline since 2008.

Another key factor to consider is that a stronger U.S. dollar can also negatively impact the profitability of U.S.-domiciled companies. In today’s economy, a vast majority of U.S. companies have operations located outside of the U.S., sell products or services abroad, source workers from other countries, and even purchases raw goods or materials from foreign suppliers. The result is that investors of the U.S.-domiciled companies will almost always have some sort of exposure to non-dollar currencies.

If you’ve taken a close look at earnings this season, you may have noticed several companies reporting worse-than-expected foreign sales and lower profits due to currency fluctuations against the rising dollar.

While a stronger U.S. dollar may be beneficial for some corners of the economy, investors must realize how such a rise could potentially negatively impact portfolios with either direct or indirect exposure to foreign currencies. Be sure to take the time to analyze how a strong dollar and currency fluctuations can affect your holdings.

Follow me on Twitter @DPylypczak.

Disclosure: No positions at time of writing.