Deutsche Bank listed the DB Gold Double Short ETN (DZZ), DB Gold Double Long ETN (DGP) and DB Gold Short ETN (DGZ) on the NYSE Arca on Thursday.

According to Deutsche Bank, "The ETNs will be the first to offer investors short or leveraged exposure to gold: the DB Gold Double Short ETNs offer investors exposure to two times the monthly inverse performance of the gold index plus a monthly T-Bill index return; the DB Gold Double Long ETNs offer investors exposure to two times the monthly performance of the gold index plus a monthly T-Bill index return; and the DB Gold Short ETNs offer investors exposure to the monthly inverse performance of the gold index plus a monthly T-Bill index return."

One of the positive aspects of the short ETNs are that they allow investors to short gold within a 401(k) or IRA, which do not allow short selling of any security.