Around 2:10 p.m. GMT, the Dow Jones gained 1.00%, the Nasdaq index, with a strong technological flavor, 1.92%, and the broader S&P 500 index, 1.46%.

The New York market was trying to get off to a good start after a week marked by three out of four down sessions (Monday was a holiday).

"We had a few bad days last week, but overall risk appetite has returned since the end of May," said Adam Sarhan of 50 Park Investments.

"And that seems to continue today."

Since May 20, the Dow Jones has recovered more than 8%, and the Nasdaq, more than 10%.

For the manager, the reduced agenda at the beginning of the week, with no major company publication and no closely monitored macroeconomic indicator, could favor this climate.

"The absence of bad news has become, in itself, good news", explains Adam Sarhan.

The only major milestone of the week is the CPI price index for May, which should give new indications on Friday on the path of inflation in the United States.

"A lot of things are looking positive for the market this morning," Briefing.com's Patrick O'Hare said in a note, citing China's continued lifting of health restrictions or the company's bid upping. JetBlue on its competitor Spirit.

In addition, many valuations, cut since the beginning of the year, are now considered attractive by many investors.

Even the crazy rise in oil prices did not disturb Wall Street, with a barrel of West Texas Intermediate (WTI), the American benchmark, now flirting with 120 dollars.

Fears of a sharp economic slowdown, or even a recession, took a back seat, at least for a few hours.

"Even if we have a recession, investors hope it will be a very mild recession," said Adam Sarhan.

The renewed appetite for risk was also evident in the bond market.

The yield on ten-year US government bonds was close to 3%, at 2.99%, against 2.95%, while bond prices, which move in the opposite direction of their rates, were down.

On the side, Spirit took off (+4.10% to 21.59 dollars) after JetBlue (+1.72%) reinforced its offer to buy the airline, increasing the compensation in the event of renunciation.

It is higher than that of Frontier (+1.89% to 9.99 dollars), with which it competes to take control of Spirit.

Twitter took on a new shine (-4.18% to 38.48 dollars), after Elon Musk again accused the management of the social network of "(resisting) actively" to his requests for information on fake accounts and and spam, this time in an official document filed with the regulator.

The entrepreneur says he reserves the right to give up the acquisition of the San Francisco group if the situation persists.

As often, the richest man in the world made headlines on several fronts, after announcing this weekend that the workforce of Tesla (+ 2.02% to 717.78 dollars) would increase, a few hours later having indicated that they would be reduced by 10%.

The division by twenty of the Amazon title, announced in early March, took effect on Monday and benefited the action (+3.80% to 127.00 dollars), which has become more accessible for small holders.

The beverage group Dr Pepper Keurig was pushed in the back (+4.22% to 36.40 dollars) by its upcoming entry into the S&P 500, in place of the equipment manufacturer Under Armor (+2.63% to 10 .35 dollars).

Didi was him in orbit (+ 52.16% to 2.81 dollars), perked up by information from the Wall Street Journal according to which the "Chinese Uber" would soon be authorized by the Chinese authorities to accept new users.

The regulator would thus have completed its investigation, which began nearly a year ago on the platform, which will leave the New York Stock Exchange next week.

The solar energy sector was enjoying a bright spot, as the Biden government pledged not to impose new tariffs on imports of solar panel components, however making an exception for China.

SolarEdge Technologies (+3.35%) or Sunrun (+9.30%) were thus on the rise.

© 2022 AFP