It only launched in May 2014, but Van Eck Merk Gold Trust (NYSE Arca: OUNZ) has already surpassed $100 million in assets under management.

OUNZ seeks to provide investors with a convenient and cost-efficient way to buy and hold gold through an ETF while also giving investors the option, if they desire, to take physical delivery of the metal. OUNZ is the only ETF that provides its patented, physical gold delivery option.

Brandon Rakszawski, ETF Product Manager for VanEck, said investors have been drawn to OUNZ not only for the simple ETF access it provides to gold, but also its unique feature that enables investors to take delivery of their gold.

While most OUNZ investors choose to hold their gold with OUNZ, some investors have elected the option of taking delivery of their gold at an address of their choice; deliveries for as little as one ounce may be requested.