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* Trump says China trade talks 'back on track'
* Chipmakers surge on trade relief
* Boeing drops on report of Dreamliner 787 subpoena
* Casino operators rise on higher Macau revenue
* Indexes up: Dow 0.30%, S&P 0.55%, Nasdaq 0.88% (Updates to early afternoon)
By Shreyashi Sanyal
July 1 (Reuters) - Wall Street's main indexes rose on Monday, with the S&P 500 hitting an all-time high, as technology stocks gained on growing optimism around U.S.-China trade talks and a likely reprieve for Chinese telecoms company Huawei.
"We're right back on track," U.S. President Donald Trump said after the world's two largest economies agreed to restart trade talks.
Trump also offered concessions including no new tariffs and an easing of restrictions on Huawei Technologies Co Ltd , while China agreed to make unspecified new purchases of U.S. farm products.
Tech stocks, Wall Street's top performers so far in 2019, jumped 1.22%, with heavyweight Apple Inc's 1.7% gain providing the maximum support.
Chipmakers with a sizable revenue exposure to China jumped, fueling a 2.30% gain in the Philadelphia Semiconductor index . Huawei suppliers Intel Corp rose 0.1%, while Micron Technology Inc gained 4%.
"The outcome between Xi and Trump was probably the best that could be expected," said Robert Pavlik, chief investment strategist and senior portfolio manager at SlateStone Wealth LLC said.
"Now with a trade truce and quite likely an eventual trade agreement coming online, the technology space, which is heavily connected to Asia, would be an area of the market you want to take a bet on."
Stocks saw their steepest sell-off this year in May after a breakdown in the U.S.-China trade talks sparked concerns of a global economic slowdown.
But hopes that the Federal Reserve would cut interest rates to preserve a strong run of U.S. economic growth helped the S&P 500 and the Dow Jones indexes post their best June performance in generations.
Despite the latest development in talks, traders still expect the Fed's next move will be a rate cut at its July 30-31 policy meeting.
Data showed growth in manufacturing cooled in the United States in June while factory activity shrank across much of Europe and Asia, further boosting chances of a rate cut.
June factory activity data is evident of the impact tariffs and tensions are having on global growth, said Lindsey Bell, investment strategist at CFRA Research in New York.
At 12:54 p.m. ET, the Dow Jones Industrial Average was up 80.44 points, or 0.30%, at 26,680.40 and the S&P 500 was up 16.15 points, or 0.55%, at 2,957.91.
The Nasdaq Composite was up 70.21 points, or 0.88%, at 8,076.46. Shares of Microsoft Corp, Alphabet Inc , and Amazon.com Inc also boosted the tech-heavy index.
Gains on the Dow were limited by a 1.7% drop in Boeing Co after a report that federal prosecutors had subpoenaed records relating to the production of the 787 Dreamliner in South Carolina.
Wynn Resorts Ltd jumped 6.3%, the most on the S&P, as gambling revenue in the Chinese territory of Macau rose more than expected in June. Shares of peers Melco Resorts & Entertainment Ltd and Las Vegas Sands Corp also rose.
Coty Inc tumbled 16.1%, falling the most on the S&P, after the company said it would overhaul its operations and write down about $3 billion in value of its brands acquired from Procter & Gamble Co.
Advancing issues outnumbered decliners by a 1.67-to-1 ratio on the NYSE and by a 1.50-to-1 ratio on the Nasdaq.
The S&P index recorded 59 new 52-week highs and two new lows, while the Nasdaq recorded 113 new highs and 19 new lows. (Reporting by Shreyashi Sanyal and Uday Sampath in Bengaluru; Editing by Sriraj Kalluvila)