Rules-based investing
Make every investing decision once, while you are calm.
Keel turns a simple system into software: double down when the market is on sale, slow down when it runs hot, trim winners on a schedule, and only buy businesses that pass a quality test. Backtest it on any period, then run it forward on your own portfolio.
Double-down DCA
Index 10% or more below its trailing-year high? Buy 2x. A stock 20% below? Buy 2x. Up 20% in 30 days? Half speed. No guessing where the cycle is.
Trim rules
Up 50%: trim 10%. Up 100%: trim 20%. Proceeds flow back through a DCA pool over one to three years. Cash flow without timing the market.
The quality test
Thirteen categories, 0/5/10 each: cash vs debt, growth, margins, short interest, institutions, scalability, 5-year reward, moat, CEO and more. Below 75? Buy the index.
Backtest any period
“Had I used this all of 2025…” Replay real daily prices and compare against plain DCA, buy-and-hold and the S&P 500 with the same dollars.
An assistant that sees your screen
Chat with the page you are on. Bring your own model: Anthropic, OpenAI, Google, OpenRouter, Groq or a local Ollama server.
Installable on your phone
A progressive web app with a bottom tab bar, offline shell and daily playbook. Add it to your home screen.