Around 2:00 p.m. GMT, the Dow Jones gained 1.17%, the Nasdaq index, with strong technological representation, offered 1.95%, while the broader S&P 500 index took 1.49%.

On Monday, the Nasdaq had returned to its level of November 2020, 18 months ago, down 28% since its peak in November 2021.

The rise is "essentially technical," said Art Hogan of National Securities.

“We have been in a bearish trend for five consecutive weeks and, within this cycle, we sometimes have rebounds. And that is what we are seeing today.

According to the analyst, the market remains in a waiting position, before the publication on Wednesday of the CPI price index for April in the United States, which economists expect will show a slight slowdown in inflation, at 8.1% over one year against 8.6% the previous month.

Thursday will come the PPI, the producer price index, considered as a leading indicator and which analysts see decelerating markedly compared to the previous month.

For Art Hogan, operators are currently testing the resistance of the S&P 500 at the threshold of 4,000 points, pressed down on Monday.

The New York market was not very responsive, he said, to corporate results, the season of which continues, although more than three-quarters of companies have done better than expected.

Shaken by sharp rises or falls for several months, Wall Street remains subject to high volatility, grappling "with high uncertainty linked to the growth outlook, the monetary trajectory (of the American central bank), geopolitical conditions and rising interest rates," according to Patrick O'Hare of Briefing.com.

After also being battered, the bond market also relaxed on Tuesday.

The yield on 10-year US government bonds thus fell back below 3%, to 2.97%, against 3.06% the day before.

Sign that the nervousness of the operators on the rise in rates in progress at the American central bank (Fed) remains present, the short rates (maturity of one year or less), remained, them, oriented upwards.

According to Patrick O'Hare, CPI and PPI could show that the peak of inflation has been crossed and favor a recovery in the equity and bond markets.

Listed, Novavax was shaken (-11.28% to 47.25 dollars) after the publication of sales and earnings below expectations.

The laboratory delivered far fewer anti-Covid vaccines than expected.

Norwegian Cruise took off (+5.32% to 16.80 dollars), driven by results deemed encouraging and the announcement that reservations for the fourth quarter of 2022 are at the level of those of 2019, i.e. before the pandemic.

The cruise line can also count, for the first time in more than two years, on an entire fleet.

Peloton was in trouble (-14.05% to 12.15 dollars), after the publication of a turnover lower than analysts' forecasts and a greater loss than expected.

Even more worrying for investors, the company indicated that it was "poorly" endowed with equity, which raises fears for the sustainability of the specialist in exercise bikes and connected treadmills.

Since last July, Peloton shares have lost more than 90% of their value.

Pfizer advanced (+1.76% to 49.49 dollars) after the announcement of the acquisition, for 11.6 billion dollars, of the Biohaven Pharmaceutica laboratory (+70.78% to 141.99 dollars), specializing in particular in the treatment of migraine.

AMC was gaining height (+3.19% to 12.92 dollars), supported by results above expectations and statements deemed encouraging for the rest of the year.

The title was notably carried by the community of small holders who made it, last year, one of the "same stocks", actions around which a kind of cult is developing.

© 2022 AFP