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Bitcoin's sharp November drop is driven by investor deleveraging amid broad risk aversion, while NVIDIA's strong earnings haven't fully eased market concerns about an AI-led bubble.
Nvidia's $100B OpenAI investment and AI leadership fuel markets, but analysts warn of circular funding, stretched valuations and a potential Chinese rival that could puncture the AI chip bubble.
JPMorgan says AI-related stocks powered most S&P 500 returns, earnings and capex since ChatGPT; Magnificent 7 led gains while valuations and data-center power strain raise bubble concerns.
NVIDIA faces a mixed outlook ahead of fiscal Q2 2026 earnings: booming AI-driven GPU demand and rising data-center capex versus extreme valuation, competition, China/regulatory risks that could trigg…