Quality stock model
Rocket Science
Own the best companies
in the world.
Engineered to compound.
A focused model portfolio of leading U.S. businesses, built around the case for durable ownership.
The investment approach
Engineered to compound.
Exceptional businesses need more than a strong ranking. Rocket Science focuses on leading U.S. companies and asks whether the business deserves continued ownership. Its ambition is to own outstanding companies—not to claim it can identify the best business with certainty.
How the model works
The ownership review considers competitive durability, financial quality, normalized cash generation, capital allocation, valuation and thesis health. ML forecasts, fundamentals and AI research contribute evidence. A challenger must offer a meaningful holistic advantage after uncertainty, costs and portfolio context. The five-session confirmation and existing approval, funding and modeled-execution safeguards remain in place.
What you can follow
A quality stock portfolio needs patience and a reason to change course. The dashboard connects the current 25-stock portfolio with investment stories, risks, dated research and recorded decisions. The aim is disciplined ownership, not rotation for its own sake.
What we're watching
Watch the business case: its ability to sustain demand, earn attractive economics, convert profit into cash and reinvest sensibly. A falling price alone does not establish thesis failure. Conversely, a strong business can be a poor new purchase at an unsupported valuation.
Clarity before commitment
Questions about Rocket Science
Is Original Flagship included?
Yes. The Rocket Science subscription also provides access to Original Flagship. Their holdings, decisions and performance histories remain separate.
Does the engine replace a company whenever another ranks higher?
No. A score lead is discovery evidence. A replacement needs a documented investment advantage and the required confirmation and execution controls.
What does the subscription include?
Access to the model dashboard, published holdings and weights, available company stories, dated performance where supported, and its scheduled morning email. Subscription research is not personalized advice or managed-account execution.
How does the free trial work?
The advertised trial is seven days for eligible subscribers. A card is required. After the trial, this plan is $199 per month unless canceled before the trial ends. Eligibility and final terms appear at checkout.
Can I use my own brokerage account?
Yes. You decide whether and how to implement research in your account. Stock Pro does not execute subscription trades for you. Taxes, costs and your personal situation can make your results different from the model.
Model approach reviewed November 4, 2026. Current holdings and research dates appear in the entitled dashboard. Methodology upgrades do not retroactively select historical holdings or restate their results.
Find the right fit for your portfolio.
Compare the five subscriptions and prices, or read how to choose an investment research subscription.
Subscriptions provide model research for self-directed investors, not personalized advice. All investing involves risk, including loss of principal. For portfolio management tailored to your circumstances, explore Private Client Portfolios.