Powell's Warning on Stock Valuations Remains Relevant Over Six Months Later
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 5 days ago
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Should l Buy NVDA?
Source: Yahoo Finance
- Valuation Warning: Powell's September 2025 remark that 'equity prices are fairly highly valued' coincided with the S&P 500, Nasdaq, and Dow reaching psychologically significant highs, indicating heightened valuation risks in the market.
- Historical Data Insight: The Shiller P/E ratio for the S&P 500 has averaged 17.35 over 155 years, while currently exceeding 40, marking the second-highest valuation in history, which could foreshadow significant declines ahead.
- Downside Risk: Historically, every time the Shiller P/E surpassed 30 during a bull market, it was followed by declines of 20% to 89%, with the current situation mirroring past instances during the dot-com bubble and early 2022, suggesting potential for similar market crashes.
- Caution for Investors: Although Powell's tenure as Fed chair is nearing its end, his warnings about stock valuations remain pertinent, urging investors to exercise caution when considering investments in the S&P 500 index amidst the current high valuation landscape.
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Analyst Views on NVDA
Wall Street analysts forecast NVDA stock price to rise
41 Analyst Rating
39 Buy
1 Hold
1 Sell
Strong Buy
Current: 198.870
Low
200.00
Averages
264.97
High
352.00
Current: 198.870
Low
200.00
Averages
264.97
High
352.00
About NVDA
NVIDIA Corporation is an artificial intelligence (AI) infrastructure company. The Company is engaged in accelerated computing to help solve the challenging computational problems. Its segments include Compute & Networking and Graphics. The Compute & Networking segment includes its Data Center accelerated computing and networking platforms and AI solutions and software, and automotive platforms and autonomous and electric vehicle solutions, including software. The Graphics segment includes GeForce GPUs for gaming and personal computers (PCs), and Quadro/NVIDIA RTX GPUs for enterprise workstation graphics. Its technology stack includes the foundational NVIDIA CUDA development platform that runs on all NVIDIA GPUs, as well as hundreds of domain-specific software libraries, frameworks, algorithms, software development kits (SDKs), and application programming interfaces (APIs). Its platforms address four markets, which include Data Center, Gaming, Professional Visualization, and Automotive.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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- Outstanding Annual Performance: For the full fiscal year 2026, Nvidia reported total revenue of $215.9 billion, marking a 65% increase from fiscal 2025, reflecting the company's robust performance and profitability in the rapidly growing AI market.
- Optimistic Future Outlook: CEO Jensen Huang projects that Nvidia will achieve $1 trillion in revenue by 2027, indicating a compound annual growth rate of 116%, which highlights the company's ongoing growth potential and market leadership in AI.
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- Outstanding Cash Flow: The company reported free cash flow of $34.9 billion for the quarter and $96.6 billion for the full year, representing increases of 58% and 59% respectively from the previous year, indicating strong profitability and cash generation capabilities.
- Strong Gross Margin: Nvidia's adjusted gross margin exceeded 75%, showcasing the company's pricing power during the ramp-up of its new Blackwell architecture, further solidifying its competitive position in the market.
- Optimistic Future Outlook: The company projects total sales of about $78 billion for the next fiscal quarter, with CEO Jensen Huang emphasizing the close link between cloud infrastructure spending and real-time generative services, suggesting sustained growth in the AI era.
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- Rising Gross Margin: Nvidia's adjusted gross margin exceeded 75%, reflecting its strong pricing power as deliveries of the new Blackwell architecture ramp up, further solidifying its leadership position in the semiconductor industry.
- Optimistic Future Outlook: The company projects total sales of approximately $78 billion for Q1 of fiscal 2027, with CEO Jensen Huang emphasizing the direct link between cloud infrastructure investments and real-time generative services, suggesting that the advent of the AI era will drive sustained revenue growth for Nvidia.
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- Strong Market Demand: TSMC reported a 58% increase in first-quarter profits, attributing this to AI chip demand, indicating that Nvidia, as a leader in AI chip design, is expanding its market opportunities and is expected to maintain strong performance in the coming months.
- Commitment to Technology Updates: Nvidia has pledged to update its chips annually, successfully launching Blackwell and Blackwell Ultra in the past year and a half, with the Vera Rubin system set for release in 2026, which will further solidify its market leadership and reduce competitive threats.
- Prospects of the AI Revolution: The shift towards agentic AI is driving increasing demand for high-performance products, suggesting that Nvidia's shareholders could achieve significant gains in the next phase of the AI revolution, reflecting the company's sustained strength in the upcoming quarters.
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