Wall Street ends near flat, but financials climb with yields

A source familiar with the White House decision also said the timing for activating the additional tariffs was unclear. The move came despite Treasury Secretary Steven Mnuchin's attempts to restart talks with Beijing.

"There are a lot of headlines that have come out, people have been pretty active all week, and it's Friday afternoon. You don't really want to add additional risk when you don't know what news might hit over the weekend," said Michael O’Rourke, chief market strategist at JonesTrading in Greenwich, Connecticut.

The Dow Jones Industrial Average rose 8.68 points, or 0.03 percent, to 26,154.67, the S&P 500 gained 0.83 point, or 0.03 percent, to 2,905.01 and the Nasdaq Composite dropped 3.67 points, or 0.05 percent, to 8,010.04.

For the week, the Dow was up 0.9 percent, the S&P 500 was up 1.2 percent and the Nasdaq rose 1.4 percent.

Also weighing on utilities was NiSource, which tumbled 11.7 percent after fire investigators said they suspected a unit of the company, Columbia Gas, was linked to a series of gas explosions in Boston suburbs on Thursday.

Shares of insurer Travelers were up 0.9 percent as analysts cut loss estimates from Hurricane Florence as the storm weakened.

Walmart lost 0.6 percent after Goldman Sachs raised questions around the purchase of a majority stake in India's Flipkart.

Adobe Systems rose 2.3 percent, a day after the company topped quarterly revenue and profit expectations.

Advancing issues outnumbered declining ones on the NYSE by a 1.04-to-1 ratio; on Nasdaq, a 1.12-to-1 ratio favoured advancers.

The S&P 500 posted 51 new 52-week highs and no new lows; the Nasdaq Composite recorded 118 new highs and 68 new lows.

About 6.2 billion shares changed hands on US exchanges. That compares with the 6.1 billion daily average for the past 20 trading days, according to Thomson Reuters data.