Live experiment · paper trading
Can AI beat
the market?
QUANTHEA — an open experiment with Claude Code.
QUANTHEA is a live demonstration of what Claude Code can do in investing. Claude analyses every stock fundamentally and technically, decides for itself what goes in and out, and manages a real paper portfolio — fully autonomous and fully transparent. Every decision is visible, measured daily against the S&P 500.
The goal: to beat the index over the long term. You don't have to take our word for it — watch live.
Paper trading · illustrative · not investment advice, not an offer. If it proves itself, only then commercial — with the proper licences.
Claude
+4.6%
S&P 500
-0.7%
Edge
+5.3%
Trading days
47
The experiment just started — over a few days this means nothing. That's the point: judge it over the long term, not over a week.
How Claude invests
Fundamental + technical
Claude weighs valuation, growth and balance sheet against trend, momentum and risk — per stock, with fresh data.
Decides for itself
Claude chooses which names go in and out; a risk model (inverse volatility) sets the weights.
Autonomous, during market hours
No human in the loop: Claude analyses continuously and places the orders itself on the paper account.
Fully transparent
Every decision and every trade is traceable — and honestly measured against the S&P 500 each day.
An honest experiment
We don't promise that AI beats the market — we test it, live and transparently. The portfolio can also underperform the index. Judge it over years, not weeks.
Read more