Louis Navellier Screener is a systematic tool investors use to filter thousands of stocks against strict quantitative and fundamental criteria. By focusing on earnings growth, institutional sponsorship, and momentum, this approach aims to highlight stocks with higher probability setups in both bull and volatile markets.
Designed for active traders and long-term investors, the methodology behind the Louis Navellier Screener emphasizes data driven decision making to reduce noise and identify high probability setups. Below is a structured overview of core attributes to consider when evaluating the screener.
| Attribute | Description | Investor Impact | Typical Target |
|---|---|---|---|
| Earnings Growth Rate | Quarterly and annual earnings acceleration | Higher probability of upward price momentum | Above market average |
| Institutional Ownership Change | Recent increase in institutional stake | Signals professional capital inflows | Net new positions or added to existing |
| Relative Price Strength | Performance vs sector and market index | Identifies leaders before breakout | Top quartile over 12 months |
| Liquidity and Volume | Average daily volume and market cap | Reduces execution risk and slippage | Above $500k daily volume |
How the Louis Navellier Stock Selection Process Works
Core Quantitative Filters
The Louis Navellier Screener starts with hard quantitative filters such as earnings growth, revenue acceleration, and return on equity. These metrics aim to remove companies with weak fundamentals and retain those demonstrating operational strength.
Momentum and Technical Criteria
After narrowing by fundamentals, momentum indicators such as relative price strength and moving average alignment help refine the list. This stage targets stocks trading above key technical levels with improving chart patterns.
Institutional Flow Assessment
Institutional ownership change is a central pillar in the screener, focusing on recent insider and professional buying. The goal is to emphasize names where smart money is actively accumulating shares.
Backtesting and Historical Performance Insights
Methodology Validation
Backtesting the Louis Navellier Screener typically involves applying the same filters on historical data to measure win rates over different market cycles. Investors often review metrics such as compound annual growth rate and maximum drawdown to gauge robustness.
Sector and Market Regime Behavior
Performance can vary across sectors and market regimes, with technology and healthcare often showing strong responsiveness to earnings and momentum criteria. Evaluating results by sector helps investors understand where the screener adds most value.
Building a Portfolio Around the Screener
Position Sizing and Risk Controls
Using the screener output, investors usually apply position sizing rules to balance exposure, limit concentration, and manage risk. Stop loss levels and periodic rebalancing help maintain alignment with strategy goals.
Diversification Across Market Caps
Combining large, mid, and small cap stocks selected by the Louis Navellier Screener can reduce idiosyncratic risk while preserving growth potential. Sector diversification further smooths volatility during rotating market conditions.
Optimizing Your Use of the Louis Navellier Screener
- Define clear quantitative thresholds for earnings growth and relative strength
- Incorporate institutional ownership change as a core filter
- Use position sizing and stop levels to manage risk
- Backtest across multiple market cycles to validate performance
- Diversify across sectors and market capitalizations
- Monitor results by sector to understand regime dependent behavior
- Combine screener output with broader research and valuation checks
FAQ
Reader questions
How often should I run the Louis Navellier Screener in a live portfolio?
Running the screener weekly or monthly allows investors to capture new opportunities while avoiding excessive churn. Frequency should match your active management style and the volatility of the markets.
Can the screener be applied to existing holdings to evaluate risk?
Yes, applying the same filters to current holdings can highlight deteriorating fundamentals or weakening momentum, prompting timely review or adjustment of positions.
What should I do if a screener pick fails shortly after entry?
Review the original thesis, check for changes in institutional ownership, reassess earnings revisions, and confirm that broader market conditions have not invalidated the initial edge.
Is the Louis Navellier Screener suitable for long term investors or only traders?
The methodology is versatile, serving both long term investors seeking quality growth and active traders looking for high probability entries. Adjust holding periods and risk rules to align with your objectives.