U.S. major stock indexes were mostly down as U.S. President Donald Trump’s recent comments dampened investor optimism about the U.S.-China deal, while the escalation of violence in Hong Kong added to concern.

The US president said on Friday that he had not yet agreed to abolish existing tariffs on Chinese imports, but China would "like" to do so. On Saturday, Trump announced his intention to conclude a trade agreement with China only if it would be a “right deal” for the United States, adding that negotiations were progressing more slowly than he would have liked. Trump's recent comments have dampened hopes for progress in trade negotiations between the two largest economies in the world.

Hong Kong's growing violence also negatively affected market sentiment. Hong Kong police used weapons against the demonstrators and wounded one of them in the 24th week of protests for democracy in the territory controlled by China.

Most of the DOW components completed trading in the red (21 of 30). Outsiders were 3M Co. (MMM; -2.02%). The biggest gainers were The Boeing Company (BA; + 5.15%).

Most S&P sectors recorded a decline. The largest drop was shown by the utilities sector (-0.5%). The conglomerate sector grew more than the rest (+ 0.3%).

At the time of closing:

Dow 27,691.49  +10.25 +0.04%

S&P 500 3,087.01 -6.07 -0.20%

Nasdaq 100 8,464.28 -11.04 -0.13%