QuanterLab in Claude

A backtesting tool you use by describing a rule in words: Claude tests it on QuanterLab and draws its circuit and figures in the chat.

Add QuanterLab to Claude
Every new account starts with 30 days of Practitioner, free and with no card.
QuanterLab's card in Claude: the circuit of Cigna's dips by market mood, every card run, and its forward test from October 2025 to October 2026 against simply holding CI: growth of $1 $1.49 against $1.22, worst drop 8.5% against 12.8%, 5 trades QuanterLab's card in Claude: the circuit of buying Costco's short dips, every card run, and its forward test from October 2025 to October 2026 against simply holding COST: growth of $1 $1.15 against $1.11, worst drop 9.6% against 18.3%, 6 trades

Five questions to ask

  1. 1. Test buying SPY when its 2-day RSI falls below 10, over the last ten years, against simply holding SPY.Ask Claude
  2. 2. Run a walk-forward on that rule to see whether it holds on years it never saw.Ask Claude
  3. 3. Scan the S&P 500 for stocks that snap back to their average, and test one of them.Ask Claude
  4. 4. Start that rule as a paper trade, with a note every morning.Ask Claude
  5. 5. Test buying Amazon's dips with separate levels for calm and stormy days, as a hidden Markov model reads them, against simply holding Amazon.Ask Claude

In Claude Code

claude plugin marketplace add quanterlab-ug/quanterlab-claude-plugin
claude plugin install quanterlab@quanterlab

Or the server alone: Claude Code MCP server for backtesting.

QuanterLab places no orders, connects to no broker and moves no money. Research and education only, not investment advice.