A Quant Desk in Your Browser

Stock Smith is an AI stock trading tool and AI-assisted stock research terminal. It takes the two tools institutional desks rely on — probabilistic price modeling and research-grade analysis — and puts them behind a single ticker box. Type a symbol, and in seconds you get a forward-looking, statistically grounded read on where a stock could go and how you might trade it.

What Stock Smith Is

Most retail tools look backward. They show you what a stock has done — a price chart, a P/E ratio, a moving average — and leave the hard part, deciding what happens next, entirely to you. Professionals don't work that way. They model the future as a range of probabilities and size their decisions around it.

Stock Smith is built around that same discipline. It pairs a Monte Carlo simulation engine with an AI analysis layer so that every ticker you search returns not a single guess, but a full distribution of outcomes plus the context to act on it. It is a research terminal for self-directed investors who want to run their own portfolio with institution-grade rigor — without the seven-figure data contract.

How It Works

Every analysis runs through a four-stage pipeline.

1. Historical Data

   We pull two years of daily price history for the ticker. From those returns we measure drift (the stock's average tendency) and volatility (how violently it swings).

2. Monte Carlo Simulation

   Using Geometric Brownian Motion — the same math behind option pricing — we simulate 1,000 possible one-year price paths. Instead of one fragile prediction, you get a thousand, revealing the full cone of where the stock could realistically land.

3. AI Analysis

   The simulation's output — expected price, probability of gain, volatility — is handed to an AI model alongside current market context. It returns sentiment, bullish and bearish catalysts, key risks, and three concrete trade strategies with entry, target, and stop-loss levels.

4. Interrogate It

   Ask the AI anything about the analysis in plain language, by text or by voice. Have it explain a strategy, weigh the risks, or break down the numbers. Every answer can be read aloud so you can keep your eyes on the chart.

Under the Hood: The Monte Carlo Engine

We model price movement with Geometric Brownian Motion (GBM), parameterized by the drift and volatility measured from real historical returns. Each of the 1,000 simulated paths takes a different random walk through the next year. Together they form a probability distribution: a mean path through the center, and confidence bands at the 80% and 95% levels around it.

Why It's the Ideal Portfolio Tool

• Think in Probabilities, Not Predictions — Building a portfolio is risk management. Seeing each holding's full distribution of outcomes lets you weigh positions by their actual risk profile.
• Compare Candidates on a Level Field — Run any ticker through the same engine and get apples-to-apples metrics: expected return, probability of gain, and volatility.
• Stress-Test Before You Commit — The confidence bands show you the downside as clearly as the upside. Size accordingly before a single dollar is at risk.
• Build and Refine a Strategy — Each analysis ships with three concrete trade strategies. Use them as a starting framework, then interrogate the AI to adapt them to your own risk tolerance.
• A Persistent Watchlist — Save the tickers you're tracking for quick re-analysis whenever the market moves.
• Move at the Speed of the Market — No spreadsheets, no terminals, no data subscriptions. Full quantitative briefing in seconds.

Who It's For

Stock Smith is for the self-directed investor who takes the work seriously — someone managing their own capital who wants institution-grade analytical tools without the overhead. If you've outgrown headline-chasing and want a repeatable, quantitative process for evaluating positions, this is built for you.

Stock Smith is 100% free to sign up and use — unlimited analysis, the full AI layer, voice and read-aloud, your private watchlist, live signals, and all the simulated trading bots, supported by ads. The optional Ad-Free membership at $9.99/month removes ads and adds the two real-money Auto Traders. New members can start with a 30-day free trial — $0 today. Cancel anytime.

Frequently Asked Questions

What is Stock Smith?

Stock Smith is a 100% free AI stock-analysis terminal for self-directed investors. Search any ticker to get a 1-year Monte Carlo price projection, AI-generated trade strategies, catalysts and risks, plus autonomous trading bots you can follow — all free with a registered account, supported by ads.

How does the Monte Carlo simulation work?

We pull two years of daily price history, measure each stock's drift and volatility, then run 1,000 Geometric Brownian Motion paths for the year ahead. The result is a full distribution of outcomes with 80% and 95% confidence bands and a probability of gain.

Is Stock Smith financial advice?

No. Stock Smith is a research and educational tool. Its simulations, AI analysis and trade strategies are probabilistic models based on historical data and are not investment, financial, legal or tax advice. Always do your own research.

How much does Stock Smith cost?

Stock Smith is 100% free to sign up and use: every registered account gets the full analysis terminal, all four live signal feeds (stocks and crypto), and every simulated trading bot at no cost, supported by ads. The optional Ad-Free membership at $9.99/month removes ads and unlocks the real-money Auto Traders. New members can start with a 30-day free trial — $0 today, then it auto-renews at the monthly price, and you can cancel anytime.

What do I get with a free account?

Everything. A free Stock Smith account includes the entire terminal: unlimited Monte Carlo projections and AI analysis on any ticker, Ask-the-AI with voice, your private watchlist, all five simulated trading bots, and all four live signal feeds — stock day and swing setups during market hours plus crypto day and swing 24/7 — refreshed every 33 seconds. Supported by ads, no credit card required. Only the two real-money Auto Traders require the $9.99/month Ad-Free membership.

What are the autonomous trading bots?

Every free account includes the simulated bots that build real forward track records — an AI Trader portfolio, Swing and Day Traders, plus their crypto counterparts. The Ad-Free membership adds the Auto Traders, which place real orders on your own connected WeBull and Coinbase accounts.

Can I cancel anytime?

Yes. Subscriptions are billed monthly and you can cancel from the in-app billing page at any time; access continues until the end of the current billing period.

Which stocks can Stock Smith analyze?

You can run a full Monte Carlo projection and AI analysis on essentially any publicly traded ticker. Live quotes and roughly two years of daily price history come from public market data, so Stock Smith never invents prices — if live data is unavailable for a symbol it tells you rather than showing a stale value.

Does the Auto Trader use real money?

Yes — and only with the Ad-Free membership, only after you connect your own WeBull brokerage account, and only after you explicitly consent that you understand it places real orders. The broker is always the source of truth: the Auto Trader records positions and trades solely from confirmed live WeBull state. The simulated bots never touch real funds.

Create your free account — 100% free to use, optional Ad-Free $9.99/month

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