Real-World Performance
Definition
Real-world performance refers to the actual investment results experienced by an investor or strategy, including all frictions and practical constraints, such as slippage, fees, taxes, timing differences, and imperfect execution. It contrasts with backtested or theoretical performance, which is often optimized and assumes ideal trading conditions.
It represents the true bottom line of an investment approach: what happened in practice, not just on paper.
Why It Matters to Investors
- Captures the effect of transaction costs, execution delays, and behavioral errors
- Helps distinguish between strategies that look good in backtests and those that work in live conditions
- Is critical for assessing a manager's skill and the reliability of a system
- Highlights the importance of implementation discipline and operational efficiency
- Useful for comparing advertised returns with what investors actually received
The TiltFolio View
Most of both TiltFolio systems' published performance is based on backtested data using monthly, end-of-day prices and simple execution assumptions. While we strive to model realistic trading, such as using highly liquid ETFs and no leverage, these results do not yet reflect full real-world implementation.
That said, both TiltFolio systems are designed with real-world execution in mind: simple rules, minimal trades, and low market impact. TiltFolio Adaptive rotates monthly, while TiltFolio Balanced rebalances annually, both using highly liquid ETFs. As the live track record builds, we will increasingly emphasize realized results over simulations.
Our goal is to make the live portfolios closely mirror the strategies shown in backtests, without relying on curve-fitting or hindsight. Both systems prioritize execution simplicity and reliability over complex optimization.
Real-World Application
• A fund shows +20% in a backtest, but real-world investors only achieved +12% due to fees and poor execution timing
• A trend-following system that performs well in live trading, despite underwhelming simulated results during certain market regimes
• An ETF portfolio underperforms its benchmark due to cash drag and trading delays