How BambooSignal ranks the market
Every trading day, BambooSignal evaluates 6,600+ U.S. equities across the same dimensions institutional desks track: capital efficiency, price leadership, and catalyst activity. The result is a daily ranking that surfaces where these factors converge.
The Composite Score
The Composite Score is a single, interpretable ranking that reflects the combined strength of a stock across three dimensions: fundamental quality (measured by metrics like ROIC and earnings growth), price leadership (relative strength and trend structure), and catalyst activity (revisions, insider behavior, signal clustering).
Higher-scoring stocks exhibit stronger combinations of capital efficiency, institutional-grade momentum, and catalytic change. The score updates daily to reflect the latest data, including opening-session price action. The model doesn’t predict — it prioritizes.
Composite Score
Exact weighting and signal calibration are proprietary.
Three Signal Families
Each signal family captures a different dimension of stock strength. Together, they form a comprehensive picture.
Quality
Does this business earn more than its cost of capital — and can it sustain it?
The Quality signal evaluates whether a company is built on durable financial foundations — the same core principles used by long-term compounders and institutional value investors. This is not a simple “cheap or expensive” filter. It measures whether a business genuinely earns more than its cost of capital and can sustain that advantage.
Return on Invested Capital (ROIC)
The single best measure of capital efficiency. Companies that consistently earn above their cost of capital create value — this is what Buffett calls a "moat" expressed in numbers.
Revenue Growth (5Y CAGR)
Durable growth over five years, not a single quarter. Separates structural growers from one-time beneficiaries of macro tailwinds or accounting treatment.
Forward P/E vs. Growth (PEG)
Valuation in context. A stock trading at 30x earnings may be cheap if growth justifies it. This metric prevents the model from overpaying for quality or undervaluing growth.
EPS Growth Expectations
Where consensus expects earnings to go — and whether those expectations are accelerating. Forward-looking quality matters more than trailing metrics.
Momentum
Is institutional capital flowing into this name with conviction?
The Momentum signal measures whether price action and market behavior are confirming a stock’s thesis. Strong fundamentals alone aren’t enough — the market must be participating. Price is information. Volume is confirmation. Together, they reveal institutional conviction.
Relative Strength
How a stock performs versus its sector and the broader market. True leaders outperform across timeframes — this is the most validated factor in quantitative finance.
200-Day Trend Structure
Sustained positioning above the 200-day moving average with clear trend slope. This is the institutional dividing line between "in an uptrend" and "in trouble."
Volume Expansion
Rising volume on advancing days signals accumulation — institutions building positions. Price moves on low volume are noise; price moves on expanding volume are conviction.
Catalyst
Are expectations shifting in a way the market hasn’t fully priced?
The Catalyst signal detects events, revisions, and developments that shift market expectations. Markets don’t move on what happened — they move on what’s changing. These signals are the “spark” that turns a strong fundamental + momentum setup into an actionable opportunity.
Earnings Revisions
When analysts raise estimates, it signals improving fundamentals the market hasn't fully priced. Revision momentum is one of the most persistent alpha factors in institutional research.
Insider Activity
Officers and directors buying with their own money — especially cluster buying by multiple insiders — is one of the strongest non-price signals of undervaluation or coming positive developments.
Signal Clustering
When multiple independent catalyst signals fire simultaneously — revisions up, insiders buying, and volume expanding — the probability of a meaningful move increases significantly.
What the Model Surfaces
- Leadership emergence — stocks moving into top ranks across multiple factors simultaneously
- Sector rotation — capital flow shifts between market segments revealed through signal convergence
- Momentum acceleration — strengthening trends confirmed by quality and catalyst alignment
- Regime shifts — changes in broad market character that reframe the opportunity set
- Multi-factor convergence — the highest-conviction signals come when Q, M, and C align
What BambooSignal Is — and Is Not
What it is
- A prioritization engine — not a screener, not a signal spam tool
- A daily research accelerator used by early-stage investors and traders
- A convergence framework that aligns with how institutions evaluate stocks
- A way to discover names showing institutional accumulation early
- A structured, repeatable alternative to opinion-driven research
What it is not
- Not a trading system or buy/sell signal service
- Not a guarantee of performance or returns
- Not a replacement for independent judgment
- Not a single-indicator or back-tested-only model
- Not investment advice or a fiduciary recommendation
In plain English
BambooSignal asks three questions about every stock, every day: Is this a good business? Is the market confirming it? Is something changing in its favor? Stocks that answer yes to all three rank highest. The model doesn’t predict — it prioritizes. It tells you where to look, not what to do.
Common Questions
Is BambooSignal a screener or a prediction engine?
Neither. BambooSignal is a prioritization engine. It doesn't predict which stocks will go up — it ranks the entire market by multi-factor strength so you can focus your research on the names with the highest convergence of institutional-grade signals.
Does BambooSignal guarantee returns?
No. No model can guarantee returns. BambooSignal provides a disciplined, systematic ranking framework. Investment outcomes depend on many factors including timing, position sizing, and broader market conditions. Past rankings do not guarantee future performance.
Why are exact formulas not disclosed?
The specific signal weights, data source combinations, and calibration logic are proprietary. This protects the integrity of the system and prevents replication. The methodology page explains what each signal family measures conceptually — the 'what,' not the 'how.'
Proprietary Framework
The exact formulas, signal weights, data source combinations, and calibration logic behind BambooSignal’s Composite Score are proprietary. This page describes what each signal family measures at a conceptual level — not how the model is constructed.
The framework is continuously refined as markets evolve. Past patterns do not guarantee future results.
See Pricing & AccessSee the methodology in action
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