Match Factor Exposure
Match Factor Exposure for long-only ETF replication of target funds
Match a target fund's factor loadings (Fama-French, Carhart, FF5) with a long-only basket of ETFs. See achieved betas, tracking error, and active alpha.
Match Factor Exposure is for replication problems: given a target fund and a candidate ETF set, find long-only weights that reproduce the target's factor profile.
This page covers the matching approach, supported factor models, and how to read achieved betas, tracking error, and residual alpha.
What this tool produces
- Long-only ETF weights that match a target fund's factor loadings.
- Achieved factor betas vs the target's reference betas.
- Tracking error and residual alpha relative to the target.
When to use factor matching
Use factor matching to replicate a fund's factor profile with cheaper or more accessible ETFs. It also shows how much of a fund's behavior named factor exposures explain.
Inputs that shape the result
- The target fund and the candidate ETF universe.
- The factor model (CAPM, Fama-French 3, Carhart 4, FF5).
- The estimation window and frequency.
Complementary tools
- Factor Regression for diagnosing the target's exposures first.
- Portfolio Optimizer for constraint-aware weight design.
- Asset Analyzer for single-asset diagnostics on candidate ETFs.
FAQ
Does matching factor loadings guarantee matching future returns?
No. The basket reproduces historical factor exposures over the chosen window. Future returns still depend on factor realization, residual alpha, and any drift in exposures over time.