Wall Street has ended mixed after a volatile session that saw Tesla slump and other growth stocks also lose ground.
The S&P 500 and the Nasdaq logged their seventh straight week of losses, their longest losing streak since the end of the dotcom bubble in 2001.
The Dow suffered its eighth consecutive weekly decline, its longest since 1932 during the Great Depression.
Worries about surging inflation and rising interest rates have pummelled the US stock market this year, with danger signals from Walmart Inc and other retailers this week adding to fears about the economy.
The S&P 500 spent most of the session in negative territory and at one point was down just over 20 per cent from its January 3 record high close before ending down 18 per cent from that level and flat for the day.
Closing down 20 per cent from that record level would confirm the S&P 500 has been in a bear market since reaching that January high, according to a common definition.
The tech-heavy Nasdaq was last down about 27 per cent from its record close in November 2021.
Weighing heavily on the S&P 500, Tesla tumbled 6.4 per cent after Chief Executive Elon Musk denounced as "utterly untrue" claims in a news report that he sexually harassed a flight attendant on a private jet in 2016.
Other megacap stocks also fell, with Apple Google-owner Alphabet Inc down 1.3 per cent and Nvidia losing 2.5 per cent.
Shares of Deere & Co dropped 14 per cent after the heavy equipment maker posted downbeat quarterly revenue.
Pfizer rose 3.6 per cent, helping the S&P 500 avoid a loss for the day.
Recent disappointing forecasts from big retailers Walmart, Kohl's Corp and Target Inc have rattled market sentiment, adding to evidence that rising prices have started to hurt the purchasing power of US consumers.
On Friday, Ross Stores plunged 22.5 per cent after the discount apparel retailer cut its 2022 forecasts for sales and profit, while Vans brand owner VF Corp gained 6.1 per cent on strong 2023 revenue outlook.
Traders are pricing in 50-basis point rate hikes by the US central bank in June and July.
The S&P 500 edged up 0.01 per cent to end the session at 3,901.36 points.
The Nasdaq declined 0.30 per cent to 11,354.62 points, while the Dow Jones Industrial Average rose 0.03 per cent to 31,261.90 points.
For the week, the S&P 500 fell 3.0 per cent, the Dow lost 2.9 per cent and the Nasdaq declined 3.8 per cent.
About two thirds of S&P 500 stocks are down 20 per cent or more from their 52-week highs.
Volume on US exchanges was 13.0 billion shares, compared with a 13.5 billion average over the last 20 trading days.
Declining issues outnumbered advancing ones on the NYSE by a 1.16-to-1 ratio; on Nasdaq, a 1.24-to-1 ratio favoured decliners.
The S&P 500 posted 1 new 52-week highs and 48 new lows; the Nasdaq Composite recorded 11 new highs and 353 new lows.
Australian Associated Press
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