--- title: "Cathie Wood Buys $22.8 Million of Nvidia Stock, Ark Invest Dumps AMD and Palantir Shares" type: "News" locale: "en" url: "https://longbridge.com/en/news/296176345.md" description: "Ark Invest, led by Cathie Wood, purchased $22.8 million in Nvidia shares while selling AMD and Palantir stock on August 17, 2026. The firm increased its Nvidia holdings across multiple ETFs, capitalizing on the company's AI infrastructure expansion with OpenAI. Conversely, Ark sold approximately $13.1 million in AMD shares and $3.8 million in Palantir shares. Additional trades included buying Cloudflare and Cerus, while selling Twist Bioscience, Roblox, Atai Beckley, and Tempus AI." datetime: "2026-08-18T02:37:31.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/296176345.md) - [en](https://longbridge.com/en/news/296176345.md) - [zh-HK](https://longbridge.com/zh-HK/news/296176345.md) --- # Cathie Wood Buys $22.8 Million of Nvidia Stock, Ark Invest Dumps AMD and Palantir Shares On Monday, **Cathie Wood**\-led Ark Invest executed significant trades involving **NVIDIA Corp**. (NASDAQ:NVDA), **Advanced Micro Devices, Inc.** (NASDAQ:AMD), and **Palantir Technologies Inc.** (NASDAQ:PLTR). ## The Nvidia Trade Ark Invest made substantial purchases of Nvidia shares across multiple ETFs, including **ARK Blockchain & Fintech Innovation ETF** (BATS:ARKF), **ARK Innovation ETF** (BATS:ARKK), **ARK Autonomous Technology & Robotics ETF** (BATS:ARKQ), **ARK Next Generation Internet ETF** (BATS:ARKW), and **ARK Space & Defense Innovation ETF** (BATS:ARKX). NVIDIA’s stock closed at $225.01, and Ark’s acquisition of 101,356 shares in ARKK alone translates to an investment of approximately $22.8 million. Nvidia expanded its AI infrastructure strategy by securing 4.25 gigawatts of data-center capacity in Ohio for OpenAI, with the site potentially supporting about $150 billion-$200 billion in Nvidia revenue per system generation. Separately, the companies were reportedly restructuring financing to reduce Nvidia’s potential guarantee from $250 billion to less than $120 billion, while OpenAI’s broader commitments could represent roughly $600 billion in the **Jensen Huang**\-led company’s computing systems through 2030. **Read Also: Google is Paying $10 Million for Bankrupt Spirit Airlines' Old Emails and Spreadsheets: Here's Why** ## The AMD Trade Ark sold shares of Advanced Micro Devices across **ARKF**, **ARKQ**, **ARKX** and **ARKW**. AMD’s stock closed at $506.00, and Ark’s sale of 25,917 shares amounted to approximately $13.1 million. AMD is currently raising up to $5 billion through a bond sale to boost its AI-related investments. This move is part of AMD’s broader strategy to enhance its AI computing capabilities and manage debt maturities.  ## The Palantir Trade Ark Invest reduced its holdings in Palantir Technologies by selling shares in **ARKF**. Palantir’s stock closed at $172.55, and the sale of 22,023 shares equated to approximately $3.8 million. Palantir has taken a unique approach by developing software that integrates with various AI models rather than building its own. This strategy allows Palantir to benefit from the AI boom without heavy investments in AI infrastructure.  ## Other Key Trades - ARKF bought 5,001 shares of **Cloudflare, Inc.** (NET). - ARKG sold 42,028 shares of **Twist Bioscience Corporation** (TWST). - ARKK sold 592,227 shares of **Roblox Corp**. (RBLX). - ARKG sold 226,381 shares of **AtaiBeckley Inc**. (ATAI). - ARKK bought 344,578 shares of **Cerus Corp**. (CERS). - ARKG purchased 22,666 shares of Tempus AI Inc. (TEM). **Benzinga Edge Stock Rankings** indicate Nvidia stock has a Momentum score in the 68th percentile and Value score in the 6th percentile. **Read Also: Nike, Meta Platforms, INVO Fertility, EyePoint Pharmaceuticals, and Micron: Why These 5 Stocks Are on Investors' Radars Today** _Photo Courtesy: ChrisStock82 on Shutterstock.com_ **_Disclaimer:_** _This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors._ ### Related Stocks - [CERS.US](https://longbridge.com/en/quote/CERS.US.md) - [PLTR.US](https://longbridge.com/en/quote/PLTR.US.md) - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) - [ATAI.US](https://longbridge.com/en/quote/ATAI.US.md) - [TWST.US](https://longbridge.com/en/quote/TWST.US.md) - [TEM.US](https://longbridge.com/en/quote/TEM.US.md) - [NET.US](https://longbridge.com/en/quote/NET.US.md) - [TEMT.US](https://longbridge.com/en/quote/TEMT.US.md) - [PLTZ.US](https://longbridge.com/en/quote/PLTZ.US.md) - [NVDU.US](https://longbridge.com/en/quote/NVDU.US.md) - [NVDX.US](https://longbridge.com/en/quote/NVDX.US.md) - [PLTU.US](https://longbridge.com/en/quote/PLTU.US.md) - [PLTD.US](https://longbridge.com/en/quote/PLTD.US.md) - [NVDL.US](https://longbridge.com/en/quote/NVDL.US.md) - [AMDD.US](https://longbridge.com/en/quote/AMDD.US.md) - [NVDY.US](https://longbridge.com/en/quote/NVDY.US.md) - [PTIR.US](https://longbridge.com/en/quote/PTIR.US.md) - [AMDL.US](https://longbridge.com/en/quote/AMDL.US.md) - [PLT.US](https://longbridge.com/en/quote/PLT.US.md) - [NVDD.US](https://longbridge.com/en/quote/NVDD.US.md) - [AMUU.US](https://longbridge.com/en/quote/AMUU.US.md) - [NVDS.US](https://longbridge.com/en/quote/NVDS.US.md) - [07788.HK](https://longbridge.com/en/quote/07788.HK.md) - [07388.HK](https://longbridge.com/en/quote/07388.HK.md) - [PLTW.US](https://longbridge.com/en/quote/PLTW.US.md) - [PLTG.US](https://longbridge.com/en/quote/PLTG.US.md) - [NVD.US](https://longbridge.com/en/quote/NVD.US.md) - [PLOO.US](https://longbridge.com/en/quote/PLOO.US.md) - [PLTA.US](https://longbridge.com/en/quote/PLTA.US.md) - [PLTY.US](https://longbridge.com/en/quote/PLTY.US.md) - [PLYY.US](https://longbridge.com/en/quote/PLYY.US.md) - [AMDG.US](https://longbridge.com/en/quote/AMDG.US.md) - [DAMD.US](https://longbridge.com/en/quote/DAMD.US.md) - [AMDY.US](https://longbridge.com/en/quote/AMDY.US.md) - [AMDW.US](https://longbridge.com/en/quote/AMDW.US.md) - [NVDB.US](https://longbridge.com/en/quote/NVDB.US.md) - [NVDG.US](https://longbridge.com/en/quote/NVDG.US.md) - [NVDO.US](https://longbridge.com/en/quote/NVDO.US.md) - [NVDW.US](https://longbridge.com/en/quote/NVDW.US.md) - [NVYY.US](https://longbridge.com/en/quote/NVYY.US.md) - [NYYY.US](https://longbridge.com/en/quote/NYYY.US.md) - [NVDQ.US](https://longbridge.com/en/quote/NVDQ.US.md) - [DIPS.US](https://longbridge.com/en/quote/DIPS.US.md) - [MAGX.US](https://longbridge.com/en/quote/MAGX.US.md) - [09388.HK](https://longbridge.com/en/quote/09388.HK.md) - [ARKF.US](https://longbridge.com/en/quote/ARKF.US.md) - [ARKK.US](https://longbridge.com/en/quote/ARKK.US.md) - [ARKQ.US](https://longbridge.com/en/quote/ARKQ.US.md) - [ARKW.US](https://longbridge.com/en/quote/ARKW.US.md) - [ARKX.US](https://longbridge.com/en/quote/ARKX.US.md) - [OpenAI.NA](https://longbridge.com/en/quote/OpenAI.NA.md) - [GOOG.US](https://longbridge.com/en/quote/GOOG.US.md) - [GOOGL.US](https://longbridge.com/en/quote/GOOGL.US.md) - [ARKG.US](https://longbridge.com/en/quote/ARKG.US.md) - [RBLX.US](https://longbridge.com/en/quote/RBLX.US.md) - [NVD.DE](https://longbridge.com/en/quote/NVD.DE.md) ## Related News & Research - [Anthropic’s Massive AI Buildout Is Another Bullish Signal for AMD Stock](https://longbridge.com/en/news/295700576.md) - [LG, NVIDIA deepen robotics collaboration under strategic MOU](https://longbridge.com/en/news/296287652.md) - [Glynn Capital Management LLC Boosts Stock Holdings in Advanced Micro Devices, Inc. $AMD](https://longbridge.com/en/news/296072301.md) - [Top AMD Executive Makes High-Profile Stock Move That’s Turning Heads](https://longbridge.com/en/news/296294215.md) - [AI weekly: Nvidia does deal with Wall Street, China's AI weather forecasts](https://longbridge.com/en/news/295777975.md)