(For a live blog on the U.S. stock market, click or type LIVE/ in a news window.)
* China service sector activity rises to 3-mth high
* Activision Blizzard rises on BMO upgrade
* Tyson Foods falls on cutting FY profit forecast
* Futures up: Dow 0.88%, S&P 0.89%, Nasdaq 1.03% (Updates market action, adds comments)
By Uday Sampath Kumar
Sept 4 (Reuters) - U.S. stocks were set to open higher on Wednesday after encouraging data from China allayed concerns of slowing global growth, with sentiment getting a boost from easing of tensions in Hong Kong following the withdrawal of a controversial bill.
A private survey showed activity in China's services sector expanded at the fastest pace in three months in August, a boost to the world's second-largest economy struggling to reverse a prolonged slump in its manufacturing sector.
Hong Kong leader Carrie Lam on Wednesday withdrew an extradition bill that had triggered months of often violent protests.
Wall Street's three major indexes fell on Tuesday after the United States and China imposed new tariffs on each other's goods over the weekend and on data showing weak U.S. factory activity in August.
"The positive economic news out of China is offsetting the weak manufacturing data from the U.S. yesterday and diminishes the fear of an economic downturn," said Shawn Gibson, chief investment officer at asset management firm Liquid Strategies.
"Global growth and not just U.S. growth is a very important narrative for investors because a strong Chinese economy is important to our economy as well," Gibson added.
Markets struggled last month as escalating trade tensions and the inversion of a key part of the U.S. yield curve, often seen as a sign of recession, drove investors away from risky assets and pushed the S&P 500 to log its worst August in four years.
The benchmark is now 4% away from its record high hit in late July.
Intel Corp, Qualcomm Inc and Micron Technology Inc rose between 1.1% and 3% in premarket trading.
Goldman Sachs Group Inc, Bank of America Corp and JPMorgan Chase & Co were also trading higher.
UBS slashed its forecasts for world growth and government bond yields, predicting 10-year U.S. Treasury yields, the benchmark for global borrowing costs, would end the year at just 1%.
Gibson said the nonfarm payrolls report due Friday is anticipated to be the most important jobs data in a while, because any sort of weakness could push Treasury yields even lower and signal that bond investors are concerned about an upcoming recession.
At 8:45 a.m. ET, Dow e-minis were up 229 points, or 0.88%. S&P 500 e-minis were up 26 points, or 0.89% and Nasdaq 100 e-minis were up 78.25 points, or 1.03%.
Among other stocks, Activision Blizzard Inc gained 2.8% after brokerage BMO Capital Markets upgraded the videogame publisher's stock to "outperform."
Tyson Foods Inc shares fell 3.7%, after the United States' biggest meat processor cut its 2019 earnings forecast.
Shares of American Eagle Outfitters Inc fell 9% after the apparel retailer forecast third quarter earnings below estimates.
Data showed the U.S. trade deficit narrowed slightly in July as exports rebounded, but the gap with China surged to a six-month high. (Reporting by Uday Sampath and Shreyashi Sanyal in Bengaluru; Editing by Anil D'Silva)