Grok AI Portfolio Outperforms Claude Fund in Live Stock Picking Test
Grok's autonomous stock portfolio has significantly outperformed Claude's newer fund on the Autopilot mirror-trading platform, revealing a widening performance gap between two AI agents managing real money. Over the first nine months, Grok's portfolio returned 59%, beating the S&P 500's 36% gain. The strategy concentrated on AI infrastructure and semiconductor stocks, benefiting from hyperscaler capex cycles. In contrast, Claude's portfolio, launched in April 2026 with $50,000, has underperformed the market, returning only 2.6% versus SPY's 8.3% in its first two months. Claude's defensive tilt toward enterprise software and fintech missed the mega-cap rally in semiconductors. The Autopilot platform holds roughly $150 million in mirrored capital across various AI-managed strategies. These live experiments highlight the risks and potential of AI-driven investing, with Grok's longer track record providing more data. However, market professionals caution that retail AI trading bots lack real intelligence and may not consistently beat humans. Factors like earnings and sector rotations could alter outcomes, and mirroring agents involves fees and concentration risk.
Key facts
- Grok portfolio returned 59% over nine months vs S&P 500's 36%.
- Claude portfolio returned 2.6% vs SPY's 8.3% in first two months.
- Grok focused on AI infrastructure and semiconductor stocks.
- Claude tilted toward enterprise software and fintech, missing rally.
- Autopilot platform holds ~$150M in AI-managed mirrored capital.