After the U.S. economy added the fewest workers in seven months, gold and related exchange traded funds (ETFs) jumped, with the bullion heading toward its largest gain in a week.

On Friday, the SPDR Gold Shares (NYSEArca: GLD), iShares Gold Trust (NYSEArca: IAU) and ETFS Physical Swiss Gold Shares (NYSEArca: SGOL) rose 1.0% as Comex gold futures gained 1.8% to $1,294.6 per ounce.

Meanwhile, gold miners were outperforming on the continued rally in bullion. The Market Vectors Junior Gold Miners ETF (NYSEArca: GDXJ) increased 6.3%, iShares MSCI Global Silver Miners Fund ETF (NYSEArca: SLVP) jumped 5.9% and Market Vectors Gold Miners ETF (NYSEArca: GDX) advanced 4.4% on Friday.

Related: Gold ETF Traders Should Keep These 5 Factors in Mind

U.S. companies added 160,000 new jobs in April, falling short of median forecasts for an additional 200,000 positions and fueling speculation that the Federal Reserve will push off an interest rate hike in light of the weaker economic situation, reports Luzi-Ann Javier for Bloomberg. The jobless rate stayed at 5%.

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“The Fed says they are data-dependent, and these data are certainly not going to wow them,” Chris Rupkey, chief financial economist with Bank of Tokyo Mitsubishi UFJ Ltd., told Bloomberg.

Gold futures have been strengthening on bets that the Fed would hold off on interest rate normalization – low borrowing costs help support gold as the precious metal does not offer yields or dividends.

Related: 31 Gold ETFs Investors Should Size Up 

With the weak jobs report pushing down the odds the Fed will hike rates next month to 4% from 10% on Thursday and 75% at the start of the year based on Fed-fund futures data, gold has extended its rally.

“The jobs number was a devastating blow to the people who believe that a June rate hike is on the table,” Phil Streible, a senior market strategist at RJO Futures in Chicago, told Bloomberg. “Now the chances have declined significantly, and as a result gold and silver are moving up and should move through their previous highs.”

The iShares Silver Trust ETF (NYSEArca: SLV) was up 0.8% and ETFS Physical Silver Shares ETF (NYSEArca: SIVR) was 1.3% higher Friday as Comex silver futures rose 1.3% to $17.6 per ounce.

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SPDR Gold Shares