Investors would be wise to use caution in this gold rush By: MarketWatch March 04, 2016 at 19:41 PM EST BlackRock’s $8 billion iShares Gold Trust ran out of shares as worried investors piled in, writes Chuck Jaffe. Read More >> Related Stocks: BlackRock Gold Trust Ishares High Yield Corp Bond Ishares Iboxx $ ETF JNK SPDR GOLD iPath Dow Jones-Goldman Sachs Crude Oil Fund