Software engineer Jake Nesler developed a trading AI agent using Anthropic’s Claude that mimicked his trading style. The agent delivered a 7% return over 30 days, outperforming the S&P 500’s 4.5% gain over the same period. When Nvidia’s earnings sent the stock surging in late November, the bot chose to stay out, helping Nesler avoid $10,000 (over ₹9 lakh) loss.