NEW YORK (TheStreet) -- Spot gold prices have perked up a bit midday Wednesday as Moody's reviews Portugal's debt rating for a possible downgrade and violent protests in Greece heighten worries about the sustainability of its austerity measures.

Also on Wednesday, Automatic Data Processing's April national employment report noted an increase of 32,000 jobs to private sector payrolls, compared with the 30,000 gain economists expected.

Spot gold prices were inching up by $3, or about 0.3%, to $1,175.20 an ounce midday Wednesday.
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New York spot silver prices were falling about 30 cents, or 1.7%, at $17.56 an ounce.
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New York spot platinum prices, meanwhile, were giving up $25, or 1.5%, to $1,644 an ounce, while its sister metal was losing traction.


New York spot palladium prices were tumbling $15, or 2.9%, at $501 an ounce.

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A handful of mining stocks have been trading in the red midday Wednesday. Mining stocks offer another form of exposure to precious metals.

Kinross Gold ( KGC - Get Report) stock has dropped 4.5% to $17.75 and Silvercorp Metals ( SVM - Get Report) stock has tumbled 2.4% to $7.64.

Meanwhile, Stillwater Mining ( SWC) stock has fallen 2.9% to $14.18 and ETFS Physical Palladium Shares ( PALL - Get Report) has lost 2.4% to $50.39.

-- Reported by Andrea Tse in New York

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