How CAN SLIM Is Used
The system is generally used as:
Step 1 — Screen for Candidates
Investors screen thousands of stocks using:
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EPS growth,
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sales growth,
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RS ranking,
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industry strength,
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volume behavior,
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new highs.
Step 2 — Analyze Charts
Technical analysis is heavily integrated.
Common concepts:
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breakouts,
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bases,
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consolidation patterns,
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volume confirmation,
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moving averages.
CAN SLIM is NOT purely fundamental investing.
It is a hybrid:
Step 3 — Buy on Confirmation
Instead of buying falling stocks,
CAN SLIM investors usually buy:
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breakouts,
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strength,
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confirmation moves.
This differs from traditional value investing.
Step 4 — Manage Risk
Sell rules are critical.
Typical rules:
Many implementations use:
Why CAN SLIM Became Popular
Historically, the framework identified many high-growth winners early in their advances.
Examples often associated with CAN SLIM-style traits:
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Apple
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NVIDIA
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Amazon
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Microsoft
before or during large institutional growth cycles.
Main Criticism of CAN SLIM
The strategy can:
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underperform in sideways markets,
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suffer during sharp reversals,
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experience whipsaws,
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buy “expensive-looking” stocks,
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and rotate frequently.
That is why many modern implementations add:
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tactical timing overlays,
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macro filters,
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moving averages,
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relative strength filters,
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or volume indicators.
For example, your own research emphasis using:
is essentially an attempt to improve the original CAN SLIM framework’s:
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risk management,
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market timing,
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and drawdown control.
 A sample rebalance following the CAN SLIM system for May 19 2026 - the most recent rebalance. See below the passing stocks and return and risk interpretation going back to 1999 and compared to the overall U.S. stock market Sp500 - (interpretation from Chat-GPT):
This portfolio appears to be a high-momentum, tactical CAN SLIM–style strategy with active rotation and ranking logic, likely integrating:
The results show a classic “high-upside growth rotation” profile rather than a low-volatility defensive strategy.
Interpretation of the Equity Curve
The red equity curve substantially outperforms the benchmark over the full test period.
From the statistics table:
| Metric |
Strategy |
S&P 500 |
| Total Return |
7,346% |
866% |
| Annualized Return |
17.06% |
8.64% |
| Max Drawdown |
-54.91% |
-55.19% |
| Sharpe Ratio |
0.72 |
0.48 |
| Sortino Ratio |
1.08 |
0.63 |
| Std Dev |
22.83% |
15.16% |
| Beta |
0.83 |
— |
| Alpha |
11.06% |
— |
Why the Higher Standard Deviation Is Acceptable
At first glance, critics may focus on:
However, standard deviation alone is often misleading for high-growth strategies because it penalizes:
That creates a major issue for growth investing.
A strategy experiencing explosive upside momentum will naturally produce:
But not all volatility is bad.
The Importance of the Sortino Ratio
The Sortino Ratio improves on the Sharpe Ratio because it isolates:
downside deviation only
rather than:
This is important because investors generally:
The strategy’s:
Sortino Ratio = 1.08
versus
S&P 500 Sortino Ratio = 0.63
suggests the portfolio generated substantially better returns relative to harmful downside volatility.
In other words:
the additional volatility appears to come disproportionately from:
rather than destructive downside instability.
Why Maximum Drawdown Matters More Here
For tactical growth systems,
maximum drawdown is often the more practical risk metric.
Why?
Because it measures:
Here:
| Metric |
Strategy |
S&P 500 |
| Max Drawdown |
-54.91% |
-55.19% |
This is extremely important.
Despite producing:
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nearly double the annualized return,
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and massively higher cumulative return,
the strategy experienced a drawdown profile roughly consistent with the broader U.S. equity market.
That means the system:
Interpretation of the Passing Stocks
The rebalance log shows active replacement of weakening holdings with stronger-ranked momentum names.
Stocks sold included:
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weaker relative strength transitions,
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deteriorating rank positions,
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or likely failures of the momentum/technical confirmation process.
New additions included names such as:
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IHS
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VELO
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SCCO
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IMDX
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IFS
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TFPM
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RDNW
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SLGL
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BWMX
while several stronger holdings remained:
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ELA
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BWV
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AMX
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CGEN
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NEXA
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XMAX
This suggests the model is operating as a:
What the Rebalance Suggests About the Strategy Logic
The rebalance behavior implies:
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stocks are continuously ranked,
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lower-ranked names are removed,
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capital rotates into improving momentum candidates,
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and technical persistence is rewarded.
The turnover (~60%) confirms the strategy is:
This is consistent with:
Risk Interpretation
This is not a low-volatility strategy.
It is a:
high-upside tactical growth strategy
designed to:
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maximize asymmetrical upside participation,
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while maintaining drawdown behavior comparable to the broad market.
The key evidence supporting that interpretation is:
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higher Sortino ratio,
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higher Sharpe ratio,
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lower beta than expected (0.83),
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and maximum drawdown nearly identical to the S&P 500 despite vastly higher returns.
That combination suggests:
the strategy historically generated superior upside capture efficiency rather than simply taking reckless downside risk.
Overall Interpretation
The portfolio appears to demonstrate:
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successful long-term momentum capture,
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tactical rotation into market leadership,
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effective replacement of deteriorating holdings,
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and strong upside asymmetry.
The most important statistical takeaway is likely:
The strategy generated materially higher compounded returns without materially worsening maximum drawdown relative to the S&P 500, while the elevated standard deviation appears largely attributable to upside volatility — reflected in the stronger Sortino Ratio.
The stocks are from the NYSE (New York Stock Exchange) AMEX (American Mercantile Exchange). The SP500 portfolios are on https://www.drmattlutey.com/store Â