AI Sector Turmoil and Crypto Sell-Off Dominate Markets as Nvidia Slumps

Global markets closed out a tumultuous week marked by significant upheaval in the artificial intelligence sector and a sharp downturn across cryptocurrency assets. The tech-heavy Nasdaq Composite led declines, falling 0.91% to 25,136.27, while the broader S&P 500 shed 0.40% to 7,561.67. Investors grappled with uncertainty surrounding key AI players and persistent inflation signals.

Stocks and bonds

The AI sector faced a reckoning, with Nvidia's stock enduring its sixth consecutive week of declines, a streak not seen in 14 years. The chipmaker saw its market capitalization shrink by an astonishing $573 billion this week, fueled by the departure of CEO Jensen Huang amid scrutiny over his personal conduct. This leadership change has prompted Wall Street to rethink the lucrative AI trade, impacting other chip stocks like AMD, which also slid.

The broader implications for AI financing and credit markets are now in focus, particularly as a Federal Reserve survey identified AI risks as the biggest threat to the financial system. For more on the chip sector's challenges, read our article, AMD Stock and the AI Chip Trade Face a Reckoning After Jensen Huang's Exit. Despite the tech slump, the Dow Jones Industrial Average managed a modest gain of 0.10%, closing at 52,347.60, while the FTSE 100 in London also rose 0.36% to 10,902.56.

Macroeconomic data added to the cautious sentiment, with US wholesale prices, measured by the Producer Price Index, rising 0.3% in October. This pushed the annual inflation rate to 6.5%, its highest level in nearly four years, exceeding consensus expectations. Meanwhile, the US 10-year Treasury yield climbed 1.00% to 5.15%, reflecting investor concerns about inflation and potentially tighter monetary policy.

Air travel faced disruption as the FAA lifted a rare nationwide ground stop on flights, with recovery expected to take days. Homeland Security Secretary Mullin confirmed 'zero evidence' of a cyberattack, but fewer flights due to rising fuel costs may hinder rebookings. Our recent article, US Aviation Paralyzed as FAA Declares Nationwide Ground Stop, provides more context.

Currencies and commodities

The US dollar asserted its strength against major currencies, with the Dollar Index rising 0.23% to 103.41. This led to the euro weakening against the dollar, with EUR/USD falling 0.61% to 1.1028, and the British pound also declining 0.51% against the dollar to 1.3209. A stronger dollar typically makes dollar-denominated commodities more expensive for international buyers.

In the commodities market, crude oil saw a slight dip of 0.20%, settling at $88.56 a barrel. The global oil supply landscape is shifting, with expectations of a crude glut for the first time since the Iran war began in February. However, this surplus may not automatically translate to cheaper diesel prices, as refining capacity and logistical factors play a significant role. Gold prices held relatively steady, gaining a marginal 0.06% to $3,887.60 an ounce, often seen as a safe-haven asset during periods of market uncertainty.

Crypto

The cryptocurrency market experienced a significant downturn, with major digital assets seeing substantial losses. Bitcoin plunged 6.15% to $66,954.34, while Ether dropped 6.04% to $1,895.03. Other altcoins also suffered, with Solana down 7.73% to $75.35, XRP falling 4.47% to $0.993, and BNB losing 6.15% to $615.69. This broad sell-off was partly attributed to speculation that investors might be cashing out existing crypto positions to fund participation in the anticipated Anthropic IPO, a potentially highly sought-after stock offering.

Adding to the intrigue, a Satoshi-era Bitcoin wallet, dormant since 2011, moved 75 BTC — worth approximately $5 million — marking a rare awakening of old holdings. Separately, two other dormant Bitcoin wallets, dating back to September 2010, also moved coins worth $6.9 million after 16 years. In other news, OpenAI launched AI payments in ChatGPT, partnering with Visa, Mastercard, and Amex to enable AI agents to complete purchases, signaling further integration of AI with traditional finance.

Africa and emerging markets

African financial markets presented a mixed but active picture. Nigerian companies have made strides in debt management, collectively slashing N2.26 trillion ($2.9 billion) of debt in the first nine months of 2026, often by switching to more affordable lenders. However, smaller companies still face high financing costs, close to 30%.

On the investment front, South African and Nigerian pension funds have reportedly sought a combined $1 billion stake in the initial public offering of Dangote Petroleum Refinery and Petrochemicals FZE, highlighting institutional interest in significant African industrial projects. In Ghana, ARM-Harith Infrastructure Investment Limited announced the successful financial close of Project Shiprite, a landmark maritime infrastructure investment at the Port of Takoradi. Nigeria's First Ally Money Market Fund retained its top spot in October with a year-to-date yield of 21.17%, as the broader money market segment expanded its net asset value to N6.90 trillion.

What to watch

• AI Sector Stability: Monitor further developments in Nvidia's leadership and the broader impact on AI chip stocks and investment strategies.
• Inflationary Pressures: Keep an eye on upcoming inflation data, particularly how the latest PPI figures influence central bank rhetoric and interest rate expectations.
• Crypto Market Sentiment: Observe if the crypto sell-off continues or if investors find new entry points, especially with the Anthropic IPO speculation.
• African Investment Flows: Watch for further details on the Dangote Refinery IPO and the continued trend of institutional investment in major infrastructure and industrial projects across the continent.
• Global Supply Chains: Assess the impact of the FAA ground stop on air cargo and passenger travel recovery, alongside the evolving dynamics of global oil supply and its effect on fuel prices.