The New York Stock Exchange traded in mixed order on Tuesday, with the Nasdaq rebounding on the back of Nvidia's recovery, while the Dow Jones suffered from the retail sector.

At the end of the morning, the Dow Jones lost 0.5% to 39,226 points, while the Nasdaq Composite recovered 0.7% to 17,634.9 points.

The technical rebound of the technology-weighted index - after three consecutive sessions of decline - was mainly driven by cheap buybacks on Nvidia, whose share price had fallen by more than 10% since Thursday morning.

The stock of the manufacturer of AI-dedicated processors thus gained nearly 4% in early trading.

The Dow Jones' decline was fuelled by the fall in retail stocks, with investors particularly punishing Walmart, the sector's number one.

The supermarket chain's share price dropped almost 3% after its CFO warned that second-quarter accounts would benefit from a less favorable basis of comparison than in the first quarter.

In Walmart's wake, Home Depot lost 3.7% and Best Buy around 3%.

Caution has also dominated the markets since the start of the week, as investors await Friday's release of the PCE inflation index, a price measure particularly closely watched by the Fed.

Investors are also taking a wait-and-see attitude, two days ahead of the first debate between Joe Biden and Donald Trump.

On the US market, the yield on 10-year Treasury bonds remained unchanged at around 4.25% for the third session.

Oil prices stabilized after rising for two weeks in a row. A barrel of Texas light crude (WTI) managed to hold above $81, at $81.6.

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