President Donald Trump signed a federal executive order on Thursday at the White House that prevents U.S. states from enforcing their own artificial intelligence laws and centralizes oversight in Washington. The directive establishes a Justice Department task force to challenge conflicting state rules in court, orders a 90-day review of state AI laws, and ties certain broadband and grant funding to alignment with federal AI policy.

On December 11, 2025, at its first Autonomy and AI Day, Rivian unveiled a custom autonomy AI chip, a new vehicle computer, and in‑house models. RIVN fell over 4% intraday and closed down as much as 9%. Nvidia ended 2% lower. Autonomy+ is slated for early 2026 at $2,500 upfront or $49.99 per month.

In November, Brazil's central bank began enforcing a rule that bars Nubank from using the "bank" label in its domestic branding because the country's largest fintech does not hold a banking license. Nubank, which serves 110 million customers and is valued at more than $80 billion, is now considering buying a smaller licensed institution such as Banco Digimais SA to avoid the lengthy licensing process. Regulators have tightened rules as they move to close loopholes and address rising fraud risks in Brazil's fast-growing fintech sector.

Taiwan has launched trade‑secrets probes in its semiconductor sector, targeting Tokyo Electron’s local unit and a former TSMC executive now at Intel, prosecutors said. Prosecutors charged Tokyo Electron’s Taiwan arm for allegedly failing to prevent technology theft and searched properties linked to ex‑TSMC executive Lo Wei‑jen amid concerns he shared "national core critical technology" with Intel. Intel has not been accused of wrongdoing. The actions come amid rising geopolitical tensions and debate over Taiwan’s reliance on the United States as it seeks to safeguard its chipmaking know‑how.

Filed on December 9, the Nicholas Bitcoin and Treasuries AfterDark ETF would trade only between the U.S. market close and the next day’s open. The fund would avoid spot Bitcoin and allocate at least 80% of its assets to futures, ETFs, ETPs and options. A backtest using a night‑only strategy on the iShares Bitcoin Trust ETF (IBIT) since January 2024 showed a 222% gain, compared with a 40.5% loss during daytime sessions, according to Bespoke Investment Group.

On Wednesday, Cisco’s stock reached $80.25, topping its split-adjusted high of $80.06 last set on March 27, 2000. The new peak puts the company’s market value at $317 billion, up 36% in 2025 versus the Nasdaq’s 22%. The advance follows CEO Chuck Robbins saying in November the company booked $1.3 billion in quarterly AI infrastructure orders.

On December 10 2025, Oracle reported fiscal second‑quarter cloud revenue of $7.98 billion, up 34%, and infrastructure revenue of $4.08 billion, with both figures coming in below analyst expectations. The company disclosed remaining performance obligation of $523 billion and capital expenditures of about $13 billion for the quarter, far above the $8.25 billion that had been modeled, prompting investors to question the pace and cost of its AI‑focused data center buildout. Oracle shares have fallen by about one‑third since September 10 and were down 11% in extended trading after the results, as management pointed to strong AI infrastructure demand from major clients including OpenAI, TikTok and Meta Platforms.

On December 10, 2025, Nvidia's H200 chips received clearance for export to China following a statement by U.S. President Donald Trump, prompting ByteDance and Alibaba to approach Nvidia about bulk supplies. Both companies signaled they are ready to place large orders if Chinese regulators approve imports, according to Reuters. However, tight production, uncertain schedules and limited output could constrain near-term availability even if Beijing gives the green light.

As of December 10, 2025, MicroStrategy’s shares are down 60% year-to-date, wiping out $73 billion in market value. Fifteen of 19 Wall Street analysts still recommend buying the stock. Their median price target is $485, implying about 150% upside from a recent close at $189. Those bullish calls hinge on expectations of a strong Bitcoin rebound by the end of 2026, even as the stock’s valuation premium over its Bitcoin holdings has narrowed amid rising competition.