Walnut
AI investing workspace that connects your brokerage to Claude or ChatGPT for portfolio analysis, stock research, and idea generation — no autonomous trading.
Walnut is an AI investing workspace that connects your brokerage to AI tools like Claude and ChatGPT. The AI reads your actual positions — not generic market data — and can spot patterns across thousands of stocks, summarize earnings, stress-test investment theses, and analyze fundamentals, valuation, and recent news. Ask about a stock and it shows how that name fits your portfolio: weight, contribution to returns, and overlap with other baskets.
Crucially, Walnut does not execute trades or run copy-trading. Every action requires your approval, and it never places orders automatically — it is a research and analysis layer, not an autonomous agent. A free tier connects your broker and works through Claude or ChatGPT, with each holding framed against the S&P 500.
