Tesla reported its second-quarter earnings on Wednesday, disclosing far lower profits than expected. The company's already beleaguered stock, which had fallen about 14% this year to date, dipped further following the earnings report. Elon Musk's automaker, once the pinnacle of his tech empire, has taken a back seat to SpaceX. Musk's rocket and AI company held the largest stock market debut in history last month, turning the richest man on Earth into the world's first trillionaire, though his net worth has since fallen from its peak. Tesla revealed earnings of 31 cents per share, a measurement of profits divided by the number of outstanding shares, less than the 51 cents per share Wall Street predicted.

Apple regains top spot as world's most valuable company Apple has surpassed chipmaker Nvidia as the world's most valuable company as artificial intelligence-driven market pressures weigh on investors. Apple is now worth $4.88 trillion compared with Nvidia's $4.86 trillion, following a 3.5 percent decline in Nvidia's market value. The milestone marks the first time the Cupertino, California-based iPhone maker has held the top spot in more than a year. Last month, Apple unveiled a revamped version of its assistant, Siri AI, which enables the personal assistant to better understand the personal context of users' questions, access real-time information from the Web, and perform more complex tasks on behalf of users. "Market sentiment has shifted from rewarding model makers, then to semis, and now on to those companies that can turn compute into experiences and outcomes the customer will pay for, thus driving corporate earnings," Michael Monaghan, founder of Founder ETFs, told Al Jazeera. "Apple investors first questioned Apple's lower AI spend, but now have treated Apple's lower AI capital expenditure as an advantage, with the bull case being that Apple benefits from consumer AI without spending at cloud-infrastructure scale."

The 225-issue Nikkei stock average slipped below 63,000 on Friday for the first time in about a month on an intraday basis. The 225-issue Nikkei stock average temporarily plunged over 4,100 points Friday afternoon due to selling of issues related to semiconductors and artificial intelligence following overnight falls in their U.S. counterparts. At 1:41 p.m., the index of 225 major issues listed on the Tokyo Stock Exchange's Prime section stood at 62,704.60, down 4,130.94 points, or 6.18%, from Thursday's closing. It slipped below 63,000 for the first time in about a month on an intraday basis. In the Tokyo market, memory chipmaker Kioxia Holdings and other key Nikkei component issues came under selling pressure. "We can't help thinking that the boom in generative AI-related stocks is about to end," an official of a bank-affiliated securities firm said.

Chipmaker Kioxia's market value halves from peak on AI selloff Kioxia overtook auto giant Toyota in market cap value in mid-June, but its ranking has since dropped to the fourth-largest Japanese company, as traders grow more critical over artificial intelligence. Japanese memory chipmaker Kioxia Holdings' market capitalization halved in just a month since becoming the nation's most valuable company, on growing concerns the artificial intelligence-driven rally in the sector has gone too far. Kioxia shares tumbled as much as 16% in Tokyo's morning trading on Friday, down 52% from last month's peak and losing at least ¥30 trillion ($185 billion) in value. In mid-June, Kioxia overtook auto giant Toyota in market cap value after the stock rallied more than 600% from the start of the year, driven by exuberance about demand for memory and data storage amid an AI boom. Its ranking has since dropped to the fourth-largest Japanese company. "The chip sector is vulnerable to the silicon cycle, and we've seen this pattern many times before," said Yugo Tsuboi, chief strategist at Daiwa Securities.

A White House teleprompter operator is being investigated over allegedly using inside information to place bets and make nearly $100,000 on US President Donald Trump's speeches. Gabriel Perez, who had worked at the White House since 2016, is accused of placing bets on words the president would use during major public addresses, including the State of the Union speech. The trades were made on Kalshi, a prediction markets platform where users can bet on real-world events. The firm confirmed it reported the activity to the Commodity Futures Trading Commission (CFTC), which regulates the platform. Kalshi froze Perez's account before any profits could be withdrawn, according to reports.

Image caption, Elon Musk became the world's first trillionaire when SpaceX floated SpaceX's share price has dropped below its stock market debut just over a month ago, falling sharply from a post-float peak. The price for a single share in Elon Musk's rocket, satellite and artificial intelligence (AI) company fell to $132.62 (£98.24) on Wednesday, below its initial listing of $135 in June. SpaceX's initial public offering (IPO) made Musk the world's first trillionaire. Compared to its on-the-day high so far, the stock price is now down 41%. If the price holds, or falls further, it will mean that those who purchased stock around the time of its flotation will stand to lose money on their investment.

The SpaceX IPO made history. Is the excitement still there? SpaceX investors have swung from celebration to apparent concern in its first month as a publicly traded company. When shares in the firm, co-founded and led by Elon Musk, first became available for individuals to buy on the public stock market on 12 June, there was an investor frenzy . Although the company had decided to price its shares at $135 each, the price immediately shot up to $150 that first day, climbing to $176, before closing at $160.95.

South Korean chip giant SK Hynix has raised a record-breaking $26.5bn ahead of its Wall Street debut amid soaring demand for semiconductors used in AI. SK Hynix said on Friday that it had sold 177.9 million American depositary shares (ADS) at $149 each ahead of its listing on the New York-based Nasdaq stock exchange. SK Hynix's 177.9 million ADSs are equivalent to 18 million ordinary shares. SK Hynix's initial public offering (IPO) marks the largest-ever listing by a foreign company in the US, surpassing Chinese e-commerce giant Alibaba's $25bn debut in 2014. The listing also ranks as the second-largest globally, after SpaceX's record-breaking $85.7bn Nasdaq listing in June.

South Korean computer chip maker SK Hynix has raised $26.5bn (£19.8bn) in its New York share offering, marking the largest ever listing by a foreign firm in the US. The company, a key supplier to artificial intelligence (AI) chip giant Nvidia, said on Thursday that it had sold 177.9 million American depositary shares for $149 each. The shares are set to begin trading on Friday on the Nasdaq. In May, SK Hynix saw its market value top $1tn in its home country, lifted by the boom in demand for AI chips. Its share price has more than tripled in South Korea this year, which along with Samsung Electronics has helped boost the benchmark Kospi index by more than 70% over the same period.

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