Curtis Faith

Introduction

Curtis Faith is best known as one of the most successful traders from the original Turtle Trading experiment, where a group of novice traders were trained in a systematic trend-following methodology by Richard Dennis and William Eckhardt. His approach, detailed in Way of the Turtle, emphasizes trading with an edge, strict risk management, and emotional resilience. Faith’s philosophy centers on probabilities rather than predictions—focusing on long-term success through disciplined execution, simplicity, and an unemotional adherence to rules. His method is built on the premise that trading success comes from managing risk, not from being right about market direction.

Key Concepts

Risk of Ruin

Faith defines Risk of Ruin as the danger of losing all trading capital due to a string of losses. This concept underscores the importance of position sizing and risk management. The book doesn’t provide a specific formula, but the principle is clear: traders must limit bet sizes to survive losing streaks. Faith warns that even a strategy with a positive edge can fail if risk isn’t controlled—a lesson hammered home during the Turtle experiment, where survival depended on avoiding catastrophic drawdowns.

Edge Ratio (E-Ratio)

The E-Ratio measures the effectiveness of an entry signal by comparing the maximum favorable excursion (MFE)—how much a trade moves in your favor before closing—to the maximum adverse excursion (MAE)—how much it moves against you. A ratio above 1.0 indicates a favorable edge. For example, Faith notes that filtering trades (discussed next) improved an E-Ratio from 1.20 to 1.33, demonstrating how selectivity enhances performance. The takeaway: not all signals are equal, and quantifying edge helps avoid low-probability setups.

Trend Portfolio Filter

Faith advocates using filters to improve trade quality. The Trend Portfolio Filter screens out weaker signals, increasing the likelihood of catching stronger trends. While the book doesn’t specify exact filter rules, it highlights that filtering improved the E-Ratio in testing. The lesson is that indiscriminate trading dilutes edge; selectivity—backed by data—enhances profitability.

Support and Resistance

Faith attributes support and resistance levels to behavioral biases like anchoring (where traders fixate on recent highs/lows as reference points) and recency bias (overweighting recent price action). These levels matter because they reflect collective trader psychology—areas where buying or selling pressure often emerges. However, Faith cautions against relying on them in isolation; they’re tools for context, not crystal balls.

Anchoring and Recency Bias

Anchoring explains why traders perceive certain prices as “cheap” or “expensive” based on recent extremes. For example, if a stock drops from $100 to $80, traders may anchor to the $100 high and see $80 as a bargain—even if fundamentals don’t justify it. Recency bias compounds this by overemphasizing recent moves, leading to herd behavior. Faith’s solution: focus on systematic rules, not subjective price perceptions.

Rules in Practice

1. Trade with an edge: Faith stresses that profitability comes from exploiting repeatable inefficiencies. “Trading with an edge is what separates the professionals from the amateurs. Ignore this and you will be eaten by those who don’t.”
2. Manage risk: Position sizing and stop-losses are non-negotiable. The book doesn’t prescribe exact percentages, but the principle is clear: risk small enough to survive streaks.
3. Be consistent: Deviating from rules destroys edge. “Turtles do not care about being right. They care about making money.”
4. Keep it simple: Complexity breeds hesitation. Faith notes that simple strategies, executed well, outperform convoluted ones.
5. Think in probabilities: Accept that losses are inevitable. “It turns out that it is much easier to make money when you are wrong most of the time.”
6. Take responsibility: Blaming markets or luck is futile. Successful traders own their results.

Lessons and Mistakes

• Emotional resilience is crucial: Faith observes that the ability to endure losses without panic separates winners from losers. Trading is a marathon, not a sprint.
• Losses are part of the game: They’re the cost of doing business, not failures. “Good trading is not about being right, it is about trading right.”
• Focus on the present: Predicting markets is futile. Faith’s method relies on reacting to price action, not forecasting.
• Avoid blame: Excuses prevent growth. “Mature understanding of and respect for risk is the hallmark of the best traders.”
• Simplicity wins: Over-optimization leads to curve-fitting. Robust strategies are straightforward and adaptable.

Closing Thoughts

Curtis Faith’s Way of the Turtle offers a blueprint for systematic trading success: quantify edge, manage risk ruthlessly, and maintain discipline. His method isn’t about brilliance—it’s about consistency. By embracing probabilities, avoiding emotional traps, and sticking to rules, traders can navigate uncertainty without needing to predict the unpredictable. The core lesson? Trading isn’t a test of intelligence; it’s a test of execution.