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ChatGPT vs. Grok: Stock-picking contest

Finder.com created AI stock portfolios reflecting distinct risk and diversification strategies with Nvidia as a key holding, tracked on Webull and eToro paper trading platforms.

  • Last week, Finder.com built two portfolios on Webull and eToro, asking ChatGPT and Grok to select stocks aiming for the highest return over the next year.
  • ChatGPT built a broad thematic portfolio centered on AI infrastructure, while Grok chose a hyperconcentrated strategy with no limit on number of stocks, balancing risk and diversification.
  • Grok concentrated its bets with Nvidia 25%, Palantir Technologies 20%, Broadcom 15%, plus Eli Lilly, First Solar and Amazon at 15% each, targeting `30% to 50% return potential` over next year.
  • Performance reporting begins after the first week and continues monthly, with each portfolio entered into Webull and eToro tracked over the next year by Finder.com.
  • ChatGPT emphasized `the AI build-out flywheel`, adding Eli Lilly and Cameco to balance infrastructure bets, while Grok prioritized a high-conviction, high-volatility portfolio.
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Bias Distribution

  • 96% of the sources are Center
96% Center

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The Billings Gazette broke the news in Billings, United States on Monday, November 24, 2025.
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