New York (AFP)

The New York Stock Exchange ended in scattered order Friday in a volatile market due in part to several technical factors, but Wall Street went up for the whole week.

Its flagship index, the Dow Jones Industrial Average lost 0.80% to 25,872.56 points.

The Nasdaq rose 0.03% to 9,946.12 points and the S&P 500, which represents the 500 largest companies on Wall Street, lost 0.67% to 3,097.74 points.

Over the week as a whole, the Dow Jones rose 0.8%, the Nasdaq 2.4% and the S&P 500 0.9%.

New York indices rollercoaster during the session on Friday, the day known as "the four witches", after which several contracts on financial products expired.

The S&P 500 also experienced its first rebalancing in 2020, a move generally associated with greater volatility in the equity market.

The New York market was also enlivened by several information likely to destabilize investors, starting with Apple's decision (-0.57%) to close its stores in the American states again (Arizona, Florida, Caroline North and South) who are experiencing a rebound in coronavirus cases.

"These are states where the epidemic has not spread as quickly as other parts of the country, such as New York State," said Maris Ogg of Tower Bridge Advisors.

Among other uncomfortable news for market players on Friday, the association which represents the main world cruise lines announced the suspension of trips departing from American ports until September 15 due to the Covid-19 pandemic.

The titles of Norwegian Cruise Line (-5.64%), Royal Caribbean (-6.87%) and Carnival (-5.26%) all ended in net decline.

Despite Friday's hiccups, the New York Stock Exchange has continued to show an insolent form since the end of March, supported among other things by signs of a recovery in the American economy, titanic measures to support the government and the Federal Reserve as well as hope for progress on a treatment or a vaccine against the coronavirus.

But several Wall Street barons, including Jeremy Grantham and Leon Cooperman, have warned against overvaluing New York indices and the risk of a bubble bursting.

"It is one of the most hated bull markets I can remember," said Maris Ogg, who said the fears were largely unjustified.

On the bond market, the 10-year rate on the American debt fell, settling at 0.6904% around 20.35 GMT against 0.7084% Thursday evening.

© 2020 AFP