Model Signals
Rule-based market signals, historical context, and premium notification workflows.
Four product families, one Grizzly Bulls platform.
Follow systematic market signals, study custom indicators, research individual stocks, or build on structured financial and registry data through our developer APIs.
Choose the workflow that matches your question
Grizzly Bulls combines investor-facing research tools with developer data products. Each product family solves a different job, while shared account access and connected research workflows make it easy to move from market context to company research or structured data.
Custom Indicators
Purpose-built views of breadth, valuation, positioning, liquidity, and other market conditions.
Stock Research
Connected financials, valuation, ownership, filings, and source-backed analysis for individual stocks.
Developer APIs
Keyless economic history and authenticated SEC, Wealth, and Aircraft APIs with product-specific access.
Premium connects the investor products.Premium model signals and premium custom indicators are included in the same membership.
Systematic investing
Investor productModel Signals
Grizzly Bulls models turn predefined market rules into clear signal states. You can inspect the current signal and its history, receive eligible premium changes by email, and decide how or whether to express that signal in your own account.
Who it’s for
Investors who want a repeatable broad-market framework for regime and risk changes.
What you get
- Current signals and historical signal changes.
- Additional model families on eligible premium plans.
- Automatic email notifications for eligible premium signal changes.
- A market framework, not personalized investment advice.
How to start
- Open a model and review its historical changes.
- Compare the current state with your own market view.
- Upgrade only if you want premium models and notifications.
How the workflow moves
From market data to a model signal
The model interprets market conditions first. Grizzly Bulls publishes the resolved state, and you decide what action, if any, makes sense for your own portfolio.
- 01Inputs
Market conditions
Each model evaluates the inputs and rules that define its strategy.
- 02Decision layer
Model state
Those rules resolve to a current signal that can be compared with prior changes.
- 03Delivery
App or email
Signals are visible in Grizzly Bulls, with eligible premium changes delivered by email.
- 04Your control
Implementation
You decide whether and how to express the signal in your own account.
When a model changes, the signal can come to you
Premium notifications remove the need to keep checking the site for an eligible model change.
Market context
Included with PremiumCustom Indicators
Custom indicators add views of market conditions that a standard price chart does not show on its own. They complement the model signals with context around breadth, valuation, positioning, liquidity, and other market structure questions.
Who it’s for
Investors who want to understand why market conditions look unusual before acting on a signal or thesis.
What you get
- Purpose-built indicators with current readings and history.
- Methodology and context for interpreting each series.
- Premium indicators in the same membership as premium model signals.
How to start
- Choose the market question you want to investigate.
- Open the relevant indicator and compare its current reading with history.
- Use that context alongside models and your own research.
How the workflow moves
From raw market data to interpretable context
Indicators transform a narrow market question into a repeatable series that can be compared across time instead of relying on a one-off chart or anecdote.
- 01Question
Define the market condition
Start with a specific condition such as breadth, valuation, positioning, or liquidity.
- 02Construction
Build the measure
Normalize the underlying data into a repeatable indicator methodology.
- 03History
Compare across time
Place the current reading beside historical levels and prior market regimes.
- 04Interpretation
Add context
Use the indicator alongside model signals and company research rather than in isolation.
One Premium membership
Premium model signals and premium custom indicators are bundled together rather than sold as separate subscriptions.
Company research
Research platformStock Research
The stock research platform connects financial statements, valuation, ownership, filings, and source-backed analysis around a company so you can move from a ticker to the underlying evidence.
Who it’s for
Investors who want a company-level research workflow without stitching together disconnected data pages.
What you get
- Company financials and operating history.
- Valuation and market context.
- Ownership, filings, and source-backed evidence.
- Published research linked back to the underlying company data.
How to start
- Search for a company or ticker.
- Review its financial and valuation context.
- Trace important claims into ownership, filing, and source evidence.
How the workflow moves
From ticker to connected evidence
The research platform keeps company facts and source material connected so a valuation question can lead naturally into financial statements, ownership, filings, and deeper analysis.
- 01Company
Start with a ticker
Open the company you want to understand rather than a disconnected data table.
- 02Fundamentals
Read the operating picture
Review financial statements, growth, margins, and other business fundamentals.
- 03Context
Add valuation and ownership
Compare market value with operating results and understand who owns the security.
- 04Evidence
Trace filings and research
Follow important facts into filings, primary sources, and published analysis.
Structured data
Shared API platformDeveloper APIs
Access reviewed economic history without a key, or use one account key for SEC, Wealth, and Aircraft. Each API documents its own access and data contract.
api.grizzlybulls.com/v1/aircraftFAA registry data and observed change history. Uses your account API key.
Quick start →Postman collection →grizzlybulls.com/api/v1/wealthPeople, ownership, and financial-event history. Uses your account API key.
Quick start →grizzlybulls.com/api/v1/secFilings, financials, ownership, and Form 13F data. Uses your account API key.
Quick start →grizzlybulls.com/api/v1/chartsHistorical U.S. GDP, inflation, and labor-market series. No account or API key required.
Quick start →How the workflow moves
One platform, access appropriate to each API
Start keyless where available; authenticated products reuse a shared account key while preserving their own limits.
- 01Discovery
Choose the data
Read the quick start and confirm whether the API is public or requires an account key.
- 02Contract
Read OpenAPI
Review the operations, attribution and access rules for that data product.
- 03Request
Call the API
For keyless routes, send a GET request. Authenticated products use a Bearer key.
- 04Usage
Respect each limit
Follow documented pagination, rate limits and source attribution for each API.
Each API keeps its own access boundaries
Economic data is public without a key. For authenticated products, your key identifies your account but does not grant another product's paid access.