US STOCKS-Wall St set to open lower after China's tough talk on trade

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* Pinterest plummets after 2019 revenue forecast disappoints
* Trade war will only make us stronger - China newspaper
* Under Armour gains after JPM upgrades to "overweight"
* Futures down: Dow 0.82%, S&P 0.79%, Nasdaq 1.05%

(Adds comment, updates prices)
By Amy Caren Daniel
May 17 (Reuters) - Wall Street was set to break a three-day
winning streak on Friday, as trade worries returned after
Chinese media took a hard stance on the tariff dispute between
the United States and China.
The trade war will only make China stronger and will never
bring the country to its knees, the ruling Communist Party's
People's Daily wrote in a front-page commentary. Beijing's higher tariffs on U.S. products on a $60 billion
target list will take effect on June 1, which could prompt
Washington to go ahead with tariffs on a further $300 billion
worth of Chinese goods. The two sides are expected to meet in China to resume talks
soon.
"Mounting trade worries and geopolitical tensions are
weighing on investors nerves," said Peter Cardillo, chief market
economist at Spartan Capital Securities in New York.
"The trade war tensions are overcoming the positive in
markets so investors are skeptical and markets are caught in a
trading range."
Boeing Co BA.N , the single largest U.S. exporter to China
slipped 0.7% in premarket trading and Caterpillar fell 1.7%.
Technology companies including iPhone maker Apple Inc
AAPL.O and chipmakers, which rely on China for a large portion
of their revenue, were also hit by trade fears.
Apple Inc AAPL.O fell nearly 2% also weighed down by
Nomura Instinet's price target cut on its stock, citing
headwinds from the tariff war.
The escalating tensions between the world's two largest
economies also led farm equipment maker Deere & Co DE.N to cut
its full-year forecast. Its shares declined 4%.
All three major indexes have posted gains three days in a
row this week as upbeat quarterly results and a batch of strong
economic data helped ease worries of a global economic slowdown.
The S&P 500 index .SPX is now about 2% away from its
record high hit earlier this month.
At 8:11 a.m. ET, Dow e-minis 1YMc1 were down 213 points,
or 0.82%. S&P 500 e-minis ESc1 were down 22.75 points, or
0.79% and Nasdaq 100 e-minis NQc1 were down 79.75 points, or
1.05%.
Shares of Micron Technology Inc MU.O , Broadcom Inc
AVGO.O and Intel Corp INTC.O fell between 1% and 2%.
Applied Materials Inc AMAT.O gained 4.1% after the chip
gear maker's upbeat third-quarter profit eased concerns about
waning chip demand.
Online scrapbook company Pinterest Inc PINS.N slumped
16.1% after the recent Wall Street debutant forecast 2019
revenue broadly in line with Wall Street targets. Under Armour Inc UAA.N rose 3.4% after JP Morgan upgraded
the sports wear maker to "overweight" from "neutral".
Also on investors watch is the debut of Luckin Coffee Inc
LK.O , the Chinese challenger to Starbucks Corp SBUX.O .