Manager Skill Review · Fund (strategy-level)
VIGRX — VANGUARD GROWTH INDEX FUND
ERM3 analysis of the fund's reported holdings. Residual return is the component remaining after the specified model exposures; it does not establish predictive manager skill.
Large Growth · 147 holdings · eff. N 17 · top-10 64%
- Evidence
- N-PORT · registered-fund holdings
- Holdings as of
- 2026-03-31
- Filed
- 2026-05-28
- Model
- ERM3 v3.0
Summary Risk Profile
Return attribution vs risk decompositionVANGUARD GROWTH INDEX FUND is a Large Growth strategy across 147 names (effective N 17, top-10 64%). VANGUARD GROWTH INDEX FUND's +18.1% trailing return was led by market beta (+18.4% market); stock selection contributed +0.6%. About 3% of the trailing gross return came from stock selection versus buyable and style exposure — a exposure-driven signature (return-based, swings with the window).Beta to SPY 1.22 explains 89% of NAV variance; ERM3's multifactor model captures 97% · modeled-vs-reported NAV correlation 0.98 over 199 months.Evidence — not a recommendation.
Cumulative return
trailing 12m · gross vs buyableStrategy-level read from the fund's reported holdings via the RiskModels ERM3 model. Figures are gross, holdings-derived, and within-mandate. Informational use only — not investment advice.