NEW YORK -- U.S. stocks are rising Monday as Warren Buffett's Berkshire Hathaway leads financial companies higher. Media and technology companies are also making gains and energy companies are moving up with the price of oil. Overseas markets are getting off to a sluggish start to the week.

KEEPING SCORE: The S&P 500 index rose 11 points, or 0.4 per cent, to 2,851 as of 1 p.m. Eastern time. The benchmark index has risen for five weeks in a row, its longest winning streak in 2018. It's on track for its highest close since Jan. 29.

The Dow Jones Industrial Average gained 61 points, or 0.2 per cent, to 25,524. The Nasdaq composite added 38 points, or 0.5 per cent, to 7,850. The Russell 2000 index of smaller-company stocks picked up 10 points, or 0.6 per cent, to 1,683.

RIDING HIGHER: Results for Warren Buffett's Berkshire Hathaway conglomerate were stronger than analysts expected and the company's Class B shares climbed 3.7 per cent to $207.67.

Tyson Foods gained 313 per cent to $59.54. The poultry and pork processor cut its profit forecast last week in part because of uncertainty surrounding trade policy and rising freight costs. But it gave no sign things are getting worse. The stock is down 27 per cent this year.

Construction and technical services company Jacobs Engineering jumped 7.1 per cent to $71.84 after it gave a strong forecast for its next fiscal year.

Dental and medical products maker Henry Schein reported a larger profit and more revenue than Wall Street expected and its stock rose 4.7 per cent to $83.97.

TAKING LOSSES: Consumer products company Newell Brands dropped 13 per cent to $23.11. The company said the liquidation of Toys R Us hurt its baby products business and its writing products unit also struggled. Newell has been selling off assets including its Rawlings sporting goods business.

Sotheby's auction house slid 5.6 per cent to $49.95 after its profit fell short of investor projections. The company said its business was hurt by price guarantees that made some auctions less profitable.

NOT GOING RITE: Rite Aid plunged 10 per cent to $1.66 after it forecast a bigger loss for the year because generic drug pricing isn't shaping up the way it expected.

Later this week shareholders will vote on the proposed sale of Rite Aid to the Albertsons grocery store chain. The owner of Safeway agreed to buy Rite Aid in February, but two shareholder advisory firms and one major Rite Aid shareholder opposed the deal.

IN WITH THE NEW, OUT WITH NOOYI: PepsiCo said Indra Nooyi will step down as its CEO in October after 12 years leading the company. Ramon Laguarta, Pepsi's head of corporate strategy, will become its next CEO. The stock rose 1.6 per cent to $118.13.

ENERGY: Benchmark U.S. crude gained 1.7 per cent to $69.63 a barrel in New York. Brent crude, used to price international oils, rose 1.2 per cent to $74.12 a barrel in London.

Crude prices rose after the U.S. reimposed sanctions on Iran. That followed the Trump administration's withdrawal from an international agreement limiting Iran's nuclear program earlier this year. Sanctions on the Iranian oil industry are set to resume in early November.

CURRENCIES: Regulators in China tightened controls on trading in the yuan in a possible effort to stop its decline against the dollar. The yuan has drifted lower against the dollar since February, which could help exporters that face higher U.S. tariffs but also raises the risk of capital flowing out of the economy.

The British pound weakened after the U.K.'s trade minister warned that the country risks leaving the European Union without a deal to avoid tariffs and other trade barriers. The currency fell to $1.2941, its lowest in almost a year, from $1.3007 on Friday.

The dollar rose to 111.42 yen from 111.23 yen. The euro fell to $1.1560 from $1.1578.

BONDS: Bond prices rose. The yield on the 10-year Treasury note fell to 2.93 per cent from 2.95 per cent.

Utilities, household goods makers, and other companies that pay large dividends did better than the rest of the market. Those stocks are often compared to bonds, and they generally do better when bond yields are down.

OVERSEAS: Germany's DAX lost 0.1 per cent and while London's FTSE 100 added 0.1 per cent. France's CAC 40 fell less than 0.1 per cent.

Tokyo's Nikkei 225 fell 0.1 per cent. Hong Kong's Hang Seng added 0.5 per cent and Seoul's Kospi was dipped less than 0.1 per cent.