Gold ETFs fell for a second day to test a key technical support level as traders speculated the Federal Reserve may taper its bond purchases after its two-day meeting.

SPDR Gold Shares (NYSEArca: GLD) was down more than 1% in afternoon trading Tuesday.

On Wednesday, markets will get the Fed announcement followed by a press conference from Chairman Ben Bernanke. Investors will be looking for any hints the central bank could start to pull back on monetary stimulus.

On Tuesday, the government said consumer prices rose just 0.1% in May. Separately, U.S. housing starts climbed nearly 7% last month.

“Recent data gives little insight into, or guidance on, the Fed’s short-term monetary stance while instead offering rich ground for a policy debate. This is likely to be reflected in minutes from the meeting, while Ben Bernanke’s statement late on Wednesday is hardly likely to turn outright hawkish right away, given subdued [CPI readings],” said Andrey Kryuchenkov, metals analyst at VTB Capital, in a MarketWatch report.

Bernanke has indicated the Fed could ease back its purchases of $85 billion a month of Treasury and mortgage debt, if the economy and job market improve.

Gold ETFs are down about 18% so far in 2013, putting the 12-year bull market in jeopardy.

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