NEW YORK ( TheStreet) -- Investors want exposure to precious metals. Whether their goal is to protect against market uncertainties and inflation or to prepare for economic prosperity in the near future, gold, silver, and the platinum group of metals have become some of the most popular and most sought after assets in the investing world.

Sensing this boom in popularity, a number of ETF providers have risen to the occasion, releasing a bevy of products designed to track the metals from a physical and futures perspective. While this has proven to be a popular route to take, still others have remained heavily focused on the companies responsible for unearthing these commodities.

While, using ETFs and mutual funds such as Market Vectors Gold Miner ETF ( GDX) and Fidelity Select Gold Fund ( FSAGX), investors have long had the opportunity to tap into gold producers, over the past year the miner-related fund universe has taken off, expanding beyond just gold.

In recent months, companies like First Trust and Global X have come to the market with products designed to track baskets of companies involved in other types of precious metals. Today, investors can invest in platinum with the First Trust ISE Global Platinum Index Fund ( PLTM) and silver with the popular Global X Silver Miners ETF ( SIL).

The growth in miner-related ETFs has spilled over into base metals as well. The Global X Copper Miner ETF ( COPX) tracks companies responsible for producing copper.

The push for new and unique precious metal and base metal miner funds certainly reflects the retail investor's growing interest in gold, silver, and other metals. However, this expansion may also be a sign that investors are looking for investment options that will remain unaffected with the passage of financial reform.

Within the dense Dodd-Frank financial reform bill is legislation that will provide the Commodities Futures Exchange Commission (CFTC) with new powers, allowing it to increase regulation of all commodities of "finite" supply. This includes gold and other precious metals. The large number of precious metal ETFs and ETNs which track baskets of futures contracts could be in for a rocky road.

In the past, this regulatory body has used its power to set limits on the number of futures contracts that a single entity can hold. While this step has been taken to ensure that no single entity can grow so large that it manipulates the price of a commodity, it threatens to interfere with the creation and pricing of fast-growing funds, thereby creating headaches for the average investor. The most memorable example of this occurred in 2009, when the United States Natural Gas Fund ( UNG) got caught in the CFTC's crosshairs.

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