The main US stock indexes ended the session mainly in the red on the back of a significant decline in the shares of the main materials sector, as well as reports relating to the investigation of Russia's interference in the presidential elections in the US in 2016

The WSJ reported that the special prosecutor Robert Mueller called on the Grand Jury in Washington to investigate Russia's interference in the US presidential elections in 2016. This shows that the investigation is becoming more intense and is entering a new stage, according to two people familiar with this issue.

A certain influence on the dynamics of trading was also provided by US statistics. Research data in July showed a marked improvement in business activity among US service providers. Seasonally adjusted index of business activity in the US services sector from IHS Markit rose to 54.7 in July from 54.2 in June. The last reading meant the strongest expansion of business activity since January and marked the fourth consecutive month of accelerated growth.

At the same time, the index of business activity in the US services sector, calculated by the Institute for Supply Management, fell to 53.9 points in July from 57.4 points in June. According to the forecast, the figure should be 57 points. Recall, the value of the index, exceeding 50, is considered as an indicator of growth in activity.

In addition, data released by the US Department of Commerce showed that new orders for US manufactured goods increased significantly in June, exceeding forecasts. Production orders rose 3.0% after falling 0.3% in May (revised from -0.8 %). It was expected that orders will increase by 2.9%.

Most components of the DOW index recorded a rise (19 out of 30). Leader of growth were the shares of Pfizer Inc. (PFE, + 1.59%). Outsider were shares of McDonald's Corporation (MCD, -1.34%).

Most sectors of the S & P index finished trading in the red. The main material sector showed the greatest decrease (-0.9%). The conglomerate sector grew most (+ 0.6%).

At closing:

DJIA + 0.05% 22,026.17 +9.93

Nasdaq -0.35% 6.340.34 -22.31

S & P-0.22% 2.472.13 -5.44