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U.S. stock-index futures took a breather on Tuesday after two-straight declines as traders mulled more gloomy news from the eurozone, glimmers of hope from China, and second-quarter corporate earnings.

Today's Markets

As of 9:06 a.m. ET, Dow Jones Industrial Average futures rose 4 points to 12650, S&P 500 futures gained 0.75 point to 1345 and Nasdaq 100 futures climbed 8.8 points to 2588. 

The pace of headlines from the embattled eurozone has increased markedly this week. Moody's, after the close of trading in New York on Monday, said it has changed its outlook on Germany, the Netherlands and Luxembourg to negative from stable. The credit ratings company cited a heightened risk of a Greek exit from the euro and the chance that these three Aaa-rated countries will likely need to provide some backstop for the broader currency bloc. Moody's also affirmed Finland's Aaa and stable outlook. 

Meanwhile, data from the eurozone pointed to continued weakness. The Markit flash PMI gauge held steady at 46.4 in July from the month before, marking the sixth month in a row that the eurozone private sector contracted. Of particular concern, economists said, was data showing the manufacturing sector shrinking at the fastest pace since May 2009. Germany, Europe's biggest economy, also saw its output fall for the third month in a row. 

"The flash PMI for July suggests the euro area downturn showed no signs of letting up at the start of the third quarter," Chris Williamson, Markit's chief economist wrote in the report. "The downturn is being led by an increasingly severe slump in manufacturing." 

In China, there were some signs of improvement. A survey by HSBC showed manufacturing in the world's No. 2 economy contracting at the slowest pace in five months, pointing to stabilization. Hongbin Qu, the bank's chief economist for China, wrote in the report that the data indicate "earlier easing measures are starting to work." 

The Chinese central bank has recently slashed lending and deposit rates in an effort to keep the economy from cooling off too quickly. 

The pace of expansion in the U.S. manufacturing sector slowed down in July from the month before, according to Markit. The company's Flash Manufacturing PMI gauge fell to 51.8 from 52.5 the month before, slightly weaker than the 52 expected. It was the worst reading since December 2010.

On the earnings front, AT&T (T) revealed second-quarter profits of 66 cents a share, beating analyst estimates by three cents. The Dow component’s revenues came in at $31.6 billion, slightly below the $31.7 billion Wall Street expected.

United Parcel Service (UPS) posted a second-quarter EPS of $1.15 on sales of $13.4 billion. The Street was looking for profits of $1.17 a share on $13.7 billion. The shipping company also sliced its full-year earnings outlook to between $4.50 and $4.70 a share, weaker than the average estimate of $4.83. 

Commodities markets were mostly to the downside. The benchmark crude oil contract traded in New York fell 23 cents, or 0.26%, to $87.93 a barrel. Wholesale New York Harbor gasoline slid 1.3% to $2.845 a gallon. 

In metals, gold slipped $3.50, or 0.23%, to $2,574 a troy ounce. 

Foreign Markets

The Euro Stoxx 50 fell 0.61% to 2166, the English FTSE 100 dipped 0.07% to 5530 and the German DAX slumped 0.21% to 6406. 

In Asia, the Japanese Nikkei 225 slipped 0.24% to 8488 and the Chinese Hang Seng slid 0.79% to 18903. 

Follow Adam Samson on Twitter @adamsamson.