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US stocks stumble as AI trade takes a hit

Friday’s drop pushed the S&P 500 marginally into negative territory for the week.

Nia Warfield, Luke Kawa

US stocks slumped into the long weekend, with the S&P 500 ending August with its biggest daily decline since the first trading day of the month.

Even so, the drop of 0.6% barely pulled the benchmark US stock index into the red for the week. The Nasdaq 100 fared worse on Friday, falling 1.2%, while the Russell 2000 gave back 0.5%.

Tech and consumer discretionary were the worst-performing S&P 500 sector ETFs, while the beaten-up defensive pockets of the market like healthcare and consumer staples caught a bid to end the week.

Autodesk was one of the session’s bright spots, up 9.1% after the maker of design software posted a beat-and-raise earnings report after Thursday’s close. Meanwhile, Dell led declines, falling 8.9% after the tech hardware company topped Q2 estimates but issued soft guidance for Q3. Elsewhere...

Marvell Technology fell 18.6% after posting lower-than-expected data center results and a weak Q3 forecast. Meanwhile, hyperscaler Oracle also fell 5.9% amid a broader pullback for the AI trade, fueled in part by Marvell’s weak outlook.

Nvidia shares fell 3.3% following a Wall Street Journal report that Alibaba was developing an AI chip to be manufactured in China.

Super Micro Computer fell 5.5% after the AI server maker warned it still hasn’t fully fixed the accounting issues that nearly got it delisted from the Nasdaq back in February.

Alibaba rose 12.9% after the Chinese e-commerce giant missed Q1 earnings and revenue expectations but beat estimates for its all-important cloud and AI segment.

Petco shares surged 23.5% as traders applauded the pet store chain’s strong second-quarter results and improved full-year EBITDA guidance, which were released after the bell on Thursday.

Affirm shares leapt 10.6% after the buy now, pay later giant posted a Q4 earnings beat and issued a stronger-than-expected forecast for its key gross merchandise volume (GMV) metric.

Celsius shares jumped 5.3%, hitting a 52-week high, after Pepsi hiked its stake in the energy drink maker to 11% in a $585 million deal. Pepsi shares rose 1.1% on the news.

Opendoor shares climbed 4.2% after CEO Shrisha Radhakrishna purchased 30,000 shares of company stock.

Ulta Beauty shares were up as much as 3.7% in early trading before closing down 7.1%, even as the beauty juggernaut posted a strong Q2 and raised its full-year outlook.

Lucid shares slid 4.4%, hitting a record low, after Stifel slashed its price target by 30% to $2.10 from $3. The luxury EV maker is also bracing for a 1-for-10 reverse stock split next week.

Duolingo shares dropped 7.7% as the language-learning company (and retail favorite) slipped into a sudden reversal in the momentum trade that has dominated the market bounce since mid-April.

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Traders are pricing in a big swing in AI chip market share to Broadcom from Nvidia

The story within the AI trade lately has been: Google’s a winner, and OpenAI is a... well, to be kind, non-winner.

Companies closely tied to the former, like Broadcom, which codesigns the TPUs that Gemini 3 was trained on, have benefited from their relationship with the hyperscaling search giant. Conversely, Nvidia, which sells to both Google and OpenAI but is besieged with worries about how custom chips might impact its AI market share (and profitability), has been selling off.

“NVDA stock is now trading at its widest ever ~40% discount to AVGO’s current 42x forward PE versus historical -10%/+7% discount/premium over the past 1/2 yrs, respectively,” Bank of America analyst Vivek Arya wrote. “In other words, consensus has already implicitly shifted at least 10+ points of (2H26E/27E) AI market share towards AVGO, conceptually.”

The abrupt shift in valuation amid this divergent price action is reversing course on Monday: Nvidia’s up about 1.5% as of 10:55 a.m. ET, while Broadcom is off 2.6%.

Air taxi companies are in the red as Goldman initiates coverage on Archer, Joby, and Beta

Goldman Sachs initiated coverage of the major US air taxi companies on Monday, including Joby Aviation, Archer Aviation, and Beta Technologies. All three are trading down as the bank’s first notes hit investor inboxes.

Though Joby “appears to be in pole position” on certification, analyst Anthony Valentini gave the stock a “sell” rating and a $10 price target — 30% below the value of Joby’s stock at Friday’s close. Valentini wrote that it’s unclear where competitors stand in the process.

Goldman gave Archer a “neutral” rating and an $11 price target, highlighting the company’s ability to cut spending. Beta Technologies, which went public last month, received a “buy” rating and a $47 price target.

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Crypto-adjacent stocks drop to start the week

Crypto-adjacent shares slid in early trading along with unprofitable tech company shares, as animal spirits ebbed to start the US trading week.

Goldman Sachs’ basket of bitcoin-sensitive stocks — heavily weighted toward Coinbase and treasury companies like MARA Holdings and Strategy — was down more than 3% early, reflecting another tumble in bitcoin overnight, though bitcoin prices stabilized a bit in early US trading. Robinhood Markets — shares of which have at times taken cues from the price of crypto, which is traded on the brokerage app — was also down.

(Robinhood Markets Inc. is the parent company of Sherwood Media, an independently operated media company.)

It would take a talented druid and a flock’s worth of bird entrails to the divine precisely what’s driving the downdraft. But S&P’s recent assessment of the vulnerability of Tether’s stablecoin, USDT — the world’s largest of these supposedly safer forms of crypto — to the bitcoin sell-off might be playing a role.

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Sherwood Media, LLC produces fresh and unique perspectives on topical financial news and is a fully owned subsidiary of Robinhood Markets, Inc., and any views expressed here do not necessarily reflect the views of any other Robinhood affiliate, including Robinhood Markets, Inc., Robinhood Financial LLC, Robinhood Securities, LLC, Robinhood Crypto, LLC, or Robinhood Money, LLC.