NEW YORK (TheStreet) -- Here are five ETFs to watch this week.iShares Gold Trust ( IAU) During the middle of last week, Fed Chairman Ben Bernanke commented on his monetary policy before the House Financial Services Committee. While his statements touched on a number of topics, he remained mum on was the likelihood of a new round of quantitative easing. With hopes of QE3 fading, the markets surrendered to selling pressure and major stock indices slid into negative territory. These losses were contained, however, compared to the steep drop-off seen from gold. On Wednesday, shares of IAU fell over 5% -- the first decline of this magnitude in 2012.
As its name implies, TRXT is designed to mimic the performance of the iconic Pimco Total Return Fund ( PTTRX). Like PTTRX, this highly anticipated offering is managed by Bill Gross. There are some differences between the ETF and mutual fund offerings, which I highlighted in "
Gearing Up for a New Addition," which was published last week on "ETF Profits." Pimco's newest offering has already attracted a crowd. In its opening day of trading, TRXT saw over 500,000 shares change hands. Given the popularity of Pimco Total Return and Gross' recognition, TRXT stands a strong chance of overcoming the Darwinian challenges in the ETF universe. Still, I urge investors to stick to the sidelines until the initial frenzy surrounding this fund subsides. United States Natural Gas Fund ( UNG) While oil prices appear to be on the forefront of investor minds, other corners of the energy spectrum are struggling to find footing. Natural gas, for instance, has returned to its losing ways over the past few weeks, leading the futures-tracking UNG back towards all-time lows. The iPath Dow Jones UBS Natural Gas Subindex Total Return ETN ( GAZ), meanwhile, continues to struggle with a crippling premium. As I've explained on a number of occasions, this disconnected fund is not to be toyed with. Investors beware. Market Vectors Vietnam ETF ( VNM) The Vietnam ETF has been an interesting product to watch in recent weeks. The fund suffered a downturn that persisted throughout much of 2011. In 2012, however, it has come roaring back, recovering to levels last seen since early September. Although it seemed to slow down during the opening half of last week, losses were quickly reversed and it has since powered to new 2012 highs.