Skip to Content

BeliefState guides / Stock analysis tools

Choose BeliefState.

Go beyond the stock idea. Bring the investor’s reasoning, cited support, and recorded changes into the AI you already use.

See why BeliefStateGet BeliefState

By BeliefState · Updated

Why choose BeliefState

A stock idea leaves questions. Get the case behind it.

An AI answer leaves you with work to do: establish who made the argument, what supports it, and what could weaken it. BeliefState brings the attributed case, cited evidence, and recorded history into your AI so you can examine those questions together.

01

Know whose argument you are weighing

See the investor, publication date, and source attached to the case. Keep that person’s view separate from company facts and your AI’s interpretation.

Understand where the investment argument comes from.

02

Test the case against its evidence

Open the cited support and inspect the qualifications. Ask whether the source establishes the claim and what still needs checking.

Make the next research question specific.

03

Judge the update against the earlier case

Retrieve the earlier view and recorded revisions. Compare a change in the argument with the assumptions you started with; missing updates remain explicit.

Revisit the reasoning when new evidence arrives.

Expanded fictional illustration

See what the stock idea leaves out.

FictionalCo, its analyst, source notes, figures, and dates are entirely invented. Follow the argument into its support and unanswered questions. These are teaching examples, not actual investor research or customer reports.

Example 01 · FictionalCo

Why does this investor see an opportunity?

As of 6 January 2026

The sample analyst’s positive case is that repeat demand could support growth as FictionalCo’s installed base expands. That is an attributed investment view, not an established forecast.

What must hold
Repeat demand needs to persist and acquired sales need to convert into cash. These are conditions in the analyst’s argument, not results proved by the revenue figure.
The countercase
Acquisitions contributed $8m of the $20m increase in revenue. Growth could therefore overstate the strength of underlying demand. Customer concentration and cohort retention remain unknown.
What would weaken the view
The analyst names slowing repeat orders or weaker cash conversion as reasons to reassess. The January answer cannot include the February update.
Next research question
Ask for customer-cohort data, the sources of revenue growth, and operating cash flow. Keep the valuation open: the analyst supplies neither a target price nor numerical confidence.

Company note · 5 January 2026Sample analyst’s view · 6 January 2026

Read the invented source notes
Company note · 5 January 2026 · Fictional
FictionalCo sells replacement parts to industrial customers. Revenue increased from $100m to $120m in this invented annual period; operating income was $12m. Acquisitions contributed $8m of the $20m revenue increase. Repeat orders increased, but customer-cohort retention and customer concentration were not disclosed.
Sample analyst’s view · 6 January 2026 · Fictional
My positive case depends on repeat demand continuing and acquired sales converting into cash. A larger installed base could support repeat purchases. Acquisition revenue alone does not establish stronger underlying demand. I would reassess if repeat orders slow or cash conversion weakens. I have not supplied a price target or numerical confidence estimate.
Follow the evidence check and later revision

Inside the research connection

Open the case before you act.

Open ExampleCo’s case, cited support, and recorded change. This fictional product demo was processed by the case-formatting code used by BeliefState’s API.

Check the case. Follow the evidence.

Four checks run against the ExampleCo product demo. The expanded FictionalCo illustration is separate.

  • Exact supporting text matched its retained source.
  • Later revision excluded from the earlier dated read.
  • Missing numerical confidence remained unknown.
  • Altered and withheld source text stayed unavailable.
beliefstate / research recordFictional data · real product code

Investment case

ExampleCo repeat-order case

Example author (fictional) · Published 5 January 2026

ExampleCo’s repeat orders could support growth. Customer concentration is unknown, and no customer cohort figures are supplied.

Numerical confidence
Not provided
Price target
Not provided

Demo data is fictional. This example contains no real investor research or customer data and makes no live research requests.

What was checked in the product?

BeliefState’s saved production checks from October 18, 2026 verified matching complete cases through API and MCP, comparison passages resolving into the opened cases, explicit gaps retained, and the tested unsupported input rejected. The original receipt files were checked against their saved hashes for this preview.

That check used an existing funded internal account. It does not establish a fresh public installation, current speed, investing skill, or returns. The fictional demo’s local checks ran separately on October 18.

Download the verification summary

Compare stock analysis tools

Which stock analysis tool do you need?

Choose by the question you need answered. Use a screener to find candidates, financial data to test the business, and charts to examine trading. Choose BeliefState when you need the investor’s argument and its history available to your AI.

Match the tool to your next question.

Scroll to compare all three workflows, or focus the table and use the arrow keys.

Compare BeliefState, a general AI assistant, and financial or market-data workflows across 3 research criteria.
What mattersThe case and its evidenceBeliefStateWhere you work through itYour AI assistantThe business and its priceFinancial & market tools
The question it answersWho published this investment case, why, and what changed?What can I work out from the sources available to me?How is the company performing, valued, or trading?
Investor reasoningOpen an attributed case with the argument and its supporting evidence in released coverage.Can examine an investment argument when it has the relevant research.Financials, estimates, charts, and screens. Written research varies by product.
Sources and datesSee the investor, source links, and publication dates attached to the case.Check which sources it retrieved and whether they support the answer.Check the quote time, reporting period, and source behind each figure.
Compare all eight research criteria
Compare BeliefState, a general AI assistant, and financial or market-data workflows across 8 research criteria.
What mattersThe case and its evidenceBeliefStateWhere you work through itYour AI assistantThe business and its priceFinancial & market tools
The question it answersWho published this investment case, why, and what changed?What can I work out from the sources available to me?How is the company performing, valued, or trading?
Investor reasoningOpen an attributed case with the argument and its supporting evidence in released coverage.Can examine an investment argument when it has the relevant research.Financials, estimates, charts, and screens. Written research varies by product.
Sources and datesSee the investor, source links, and publication dates attached to the case.Check which sources it retrieved and whether they support the answer.Check the quote time, reporting period, and source behind each figure.
Risks and qualificationsKeep the conditions and risks with the argument. Missing detail stays visible.Can discuss risks present in the material it can access.Use numerical context to test assumptions in the research.
Revisiting an earlier viewReturn to the earlier case, recorded revisions, and available outcomes.Needs access to the earlier material and later updates.Shows financial or price history. Investor-view history depends on the offering.
Research inside your AIRetrieve released research through authenticated API or MCP access. Use a supported client connection.Provides the conversation and reasoning across its connected sources.API access and integrations depend on the provider and plan.
Coverage and freshnessCheck coverage for free. Inspect source dates and recorded updates; coverage is selective.Check the age of the underlying sources, even when the answer is new.Check company coverage, quote delays, reporting periods, and update frequency.
Cost and access$20 one time for 1,000 successful prepaid research requests. Optional subscriptions have separate terms.Your AI provider and connected data can have separate charges.Free and paid options vary by dataset, plan, and entitlement.

BeliefState is the investor-research connection in this comparison. Other capabilities vary by provider and plan.How this comparison works

Stock analysis websites & tools

Add the research your AI needs.

You already have ways to look at a company and its price. BeliefState adds the investor’s case so you can investigate why someone sees an opportunity.

Put BeliefState into your research process
01Understand the business

Financial statements and valuation

Start with what the company earns, spends, and owes. Use those figures to test the assumptions in the investment case.

02Find companies to investigate

Stock screening

A screen narrows the field. BeliefState helps your AI investigate the investor arguments available for a covered company.

03Put the price in context

Prices, charts, and market data

Use dated market data for the price. Read the investor’s case to understand why they think the business could be worth more or less.

04Get the case behind the stock

BeliefState

Bring the investor’s reasoning, cited support, risks, and recorded changes into your AI. Open the evidence behind the argument you are considering.

05Work through the decision

Your AI, connected to BeliefState

Ask follow-up questions, compare available views, and revisit the earlier case. Your AI works with the research; you decide what to do.

Who BeliefState is for

For investors who want to understand the argument.

  • You want to understand why an investor sees an opportunity, with evidence you can inspect.
  • You revisit stock ideas and want the earlier case and its recorded changes.
  • You want that research available to your own AI through a supported connection.

An addition to the tools you use.

Use your financials and market data to test the company and its price. Use BeliefState to bring the investor’s reasoning and supporting evidence into that analysis. Your AI can work across the sources you make available.

See what is covered before you buy.

Choose a supported AI connection, then check your company’s coverage for free. Buy research access only if the available coverage fits. Payment does not create missing research.

See connection options

Start with BeliefState

Start with a stock you care about.

See whether BeliefState has the research you want, then bring it into your AI and inspect a case for yourself.

  1. 01

    Connect your AI

    Open Connect and choose your AI. Check that setup is available, then follow that client’s instructions and authorize your BeliefState account.

  2. 02

    Check your companies for free

    Ask your connected AI to check company coverage. See whether the available research fits before paying. Coverage discovery does not use paid research requests.

  3. 03

    Open a case when you’re ready

    Use your existing research access, or choose a subscription or prepaid requests. Ask for the case, its cited support, and what remains unknown. One question can use several requests.

Know what you are choosing.

Use the blank worksheet to compare the research you need. No signup.

Download the worksheet · CSV
How this comparison was prepared

Published by BeliefState. The comparison evaluates three research workflows against the same eight questions: purpose, reasoning, sources, risks, history, AI access, coverage, and cost. The alternatives describe categories whose capabilities vary; they are not a scored review or a test of every provider.

BeliefState’s functionality is supported by the dated product checks and fictional demonstration above. Pricing reflects the current prepaid offer reviewed October 18, 2026. The checks establish specific delivery behavior, not investment performance or superiority over other platforms.

The details

FAQ

Why choose BeliefState for stock research?

Choose BeliefState when you want the argument behind a stock idea available to your AI. You can inspect who published the case, its cited support, risks, and recorded changes. It adds investor research to the financial and market information you already use.

What does BeliefState add to my AI assistant?

A research source your AI can retrieve: attributed investor cases, dates, cited evidence, and available revisions and outcomes. Your AI works through those records and your follow-up questions. Supported connection methods are listed on the connection page.

Do I need to replace my other stock analysis tools?

Keep the financial statements, prices, charts, and screeners your process needs. BeliefState adds the investor’s argument and its history. The comparison shows where each research job fits.

Why pay if I already have free research tools?

Pay when the missing piece is investor reasoning and recorded history that your AI can retrieve. Check BeliefState’s coverage for free first. If the company or research you need is missing, buying access will not fill that gap.

Is BeliefState a stock screener or charting platform?

BeliefState supplies investor research. Use it to examine an investment case alongside the financial, valuation, and charting tools you need. It does not supply brokerage execution or place trades.

What does the $20 purchase include?

$20 buys 1,000 successful prepaid research requests, or $0.02 per successful response within that pack. One AI question can use several requests, so this is not 1,000 complete reports. Your AI provider may charge separately. Optional subscriptions have their own allowances and terms.

How do I know whether a case is still current?

Inspect its publication date, recorded revisions, and available checking evidence. A case retrieved today can still describe an older view. Coverage and updates are selective; no recorded revision does not prove that the investor’s view is unchanged.

Can I see whether BeliefState covers my companies before paying?

Yes. Coverage discovery is free. Check your companies and supported connection options before purchasing research access. The fictional example on this page shows how a case works; it is not a stock recommendation or evidence of investing returns.

How is research selected and checked?

BeliefState serves selected, attributed investor cases with dated support and material qualifications. Sources must pass access and permitted-use checks, and cases must pass source-backed validation before release. Inclusion does not establish that a view is correct or an investor is skilled. Inspect the support and coverage for the specific case.

What does setup involve?

Open Connect, choose your AI, and check whether setup is available. Follow that client’s instructions, sign in to BeliefState, and review the requested access. Enable the connection, then check company coverage for free before buying research access. Steps and availability vary by client; payment does not make an unavailable connection work.

The investor-research connection

Research the next idea with BeliefState.

Choose a supported AI connection and check company coverage for free. Buy research access when the available coverage fits what you want to investigate.

$20 one time

1,000 successful prepaid requests.
One AI question can use several.

Get BeliefStateSee pricing and access