New York (AFP)

Wall Street clearly set off again on Wednesday, enthusiastically welcoming the partial about-face of Donald Trump, who said he was in favor of support measures for the airline sector and American households after having nevertheless decided to interrupt negotiations budgetary.

Its flagship index, the Dow Jones Industrial Average gained 1.91% to 28,303.46 points, recording its best session since July.

The Nasdaq, with strong technological coloring, took 1.88% to 11,364.60 points and the extended S&P 500 index rose 1.74% to 3,419.44 points.

The New York Stock Exchange ended in the red on Tuesday after tweets from the White House tenant announcing the end of talks with Democrats on a new plan to help households and businesses until the November 3 election.

Mr. Trump then accused the leader of the Democrats in Congress, Nancy Pelosi, of not negotiating "in good faith".

But on Tuesday evening, the US president called on Congress to pass new measures "immediately" to extend aid to employees in the airline industry and to small businesses.

Mr. Trump also said he was in favor of new checks of $ 1,200 for American households.

"President Trump is watching the market very closely as shown by his numerous tweets mentioning the records" of the major New York indices, explains Peter Hanks of DailyFX.

"He is clearly very sensitive to the performance of the stock market that he has tried to assimilate to the health of the economy," continues the expert.

"The fact of seeing a drop (Tuesday, editor's note) after comments he himself made was probably not encouraging for the president," said Mr. Hanks, judging that the negative reaction of the market could have pushed Mr. Trump to moderate his position.

Several observers, however, questioned the longer-term consequences of the deep disagreement in Congress between Republicans and Democrats, who remain unlikely to find a compromise before the presidential election.

The lack of a new budget support package by November, "could weigh on some of the major listed companies and several of the airlines," Hanks warns.

In the meantime, United Airlines (+ 4.31%), Delta Air Lines (+ 3.51%) and American Airlines (+ 4.31%) ended up sharply on Wednesday.

Cruise lines Carnival (+ 5.27%), Norwegian Cruise Line (+ 4.53%) and Royal Caribbean (+ 2.78%), also very dependent on a recovery in the economy, have risen.

Among the other values ​​of the day, Levi Strauss stock rose 5.09%.

Online sales of legendary Levi's jeans have jumped since the start of the pandemic to now represent a quarter of the American group's revenue, the company announced at the end of the day on Tuesday.

Disney took 1.64%.

Activist investor Dan Loeb on Wednesday called on the group to permanently suspend the payment of dividends to its shareholders and to use the money saved to beef up its streaming platforms, as the entertainment empire struggles to emerge from the pandemic.

Eli Lilly rose 3.35%.

The American pharmaceutical company announced on Wednesday that it had submitted an emergency authorization request for treatment with synthetic antibodies against Covid-19, in the same category as the drug injected into President Donald Trump last week.

© 2020 AFP