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DeepSeek Shakes US Tech Dominance: Impact on Stocks & ETFs

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The technology sector, which had been enjoying a huge AI boom, saw a bloodbath on Monday, triggered by the emergence of DeepSeek, a China-based artificial intelligence (AI) startup that threatens to disrupt American dominance. The launch and increasing popularity of DeepSeek have raised concerns about the future market share of established tech giants, leading to substantial declines in their stock valuations. Notably, DeepSeek triggered a $1 trillion sell-off in U.S. and European technology stocks in a single day.

Market Impact

The tech-heavy Nasdaq 100 dropped as much as 3.6%, with semiconductors and the most popular names of the AI trade seeing the biggest losses. The Philadelphia Semiconductor Index tumbled 9.2% — its largest percentage drop since March 2020. AI darling NVIDIA (NVDA - Free Report) plummeted nearly 17%, wiping about $600 billion in market value — the largest single-day loss in U.S. stock market history (read: NVIDIA Regains Momentum on AI Growth: ETFs to Tap). 

Chipmakers Broadcom (AVGO) and Advanced Micro Devices (AMD) plunged more than 17% and 6%, respectively. Micron (MU) and Arm Holdings dropped more than 11% and 10%, respectively. Constellation Energy (CEG) and Vistra (VST), two of the best-known derivative plays tied to the power buildout for AI, plummeted more than 20% and 28%, respectively.

Meta Platforms (META) and Microsoft (MSFT), each of which pledged $65 billion for AI infrastructure in 2025, fell 3.1% and 3.8%, respectively. Google parent Alphabet (GOOGL) lost 4.2%. Notably, Alphabet lost $100 billion in market cap, while Microsoft lost $7 billion.

ETF Performance

Among the worst performers in the tech ETF space, single-stock ETFs declined the most with GraniteShares 2x Long SMCI Daily ETF SMCL, YieldMax NVDA Option Income Strategy ETF (NVDY - Free Report) and YieldMax TSM Option Income Strategy ETF (TSMY - Free Report) tumbling 25.3%, 16.8% and 13.3%, respectively. 

Semiconductor ETFs — VanEck Fabless Semiconductor ETF SMHX, Columbia Semiconductor and Technology ETF (SEMI - Free Report) , Invesco Semiconductors ETF (PSI - Free Report) , Strive U.S. Semiconductor ETF (SHOC - Free Report) and VanEck Vectors Semiconductor ETF (SMH - Free Report) —declined in double digits in a single day.

AI ETFs were also in deep red. VistaShares Artificial Intelligence Supercycle ETF (AIS - Free Report) recorded a 9.4% decline, followed by declines of 8.4% for iShares Future AI & Tech ETF (ARTY - Free Report) , 7.7% for iShares A.I. Innovation and Tech Active ETF BAI and 7.2% for TCW Artificial Intelligence ETF (AIFD - Free Report) (read: AI and Robotics ETF Hits New 52-Week High).

Other tech ETFs such as VanEck Vectors Digital Transformation ETF (DAPP - Free Report) , SPDR Galaxy Transformative Tech Accelerators ETF TEKX and iShares Blockchain and Tech ETF (IBLC - Free Report) lost more than 13% each.

DeepSeek Intensifies AI Race

DeepSeek, a one-year-old startup, revealed a stunning capability last week. It presented a ChatGPT-like AI model called R1, which has all the familiar abilities and uses fewer data and lower-cost chips than OpenAI, Google or Meta’s popular AI models. The company said it had spent just $5.6 million on computing power for its base model, compared with the hundreds of millions or billions of dollars U.S. companies spend on their AI technologies. 

Additionally, DeepSeek took over rival OpenAI’s coveted spot for the most downloaded free app in the United States on Apple’s App Store, dethroning ChatGPT. Its quick dominance raised concerns over Microsoft, Meta Platforms, and Alphabet's hundreds of billions in planned spending on AI. 

DeepSeek AI’s rapid development has intensified the global AI race and introduced a new competitive dynamic in the AI industry, prompting a reevaluation of market positions and leading to significant financial repercussions for established technology companies. As China strengthens its AI ecosystem, U.S. companies could see lower revenue growth projections due to restricted market access in China. This will likely hurt stocks across the sector, especially firms that depend on AI-driven revenue streams.

What’s Next for Tech Investors?

While DeepSeek’s emergence is a game-changer, some analysts see the sell-off as a buying opportunity, arguing that industry giants have the resources to integrate or compete with new AI models. However, short-term volatility may persist as the market digests the implications of this new entrant (read: Trump Unveils Stargate AI Infrastructure Project: ETFs in Focus).

Long-term investors should keep patience and watch whether U.S. companies — NVIDIA, Microsoft and Alphabet — can maintain their AI leadership or whether DeepSeek marks the beginning of a new competitive era in artificial intelligence.

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