Manager Skill Review · Fund (strategy-level)
VIGRX — VANGUARD GROWTH INDEX FUND
Strategy-level ERM3 read from the fund's reported holdings — the mandate-accurate view. The stock-selection residual persists out of sample.
Large Growth · 109 holdings · eff. N 12 · top-10 72% · as of 2026-05-31
Summary Risk Profile
Return attribution vs risk decompositionVANGUARD GROWTH INDEX FUND is a Large Growth strategy across 109 names (effective N 12, top-10 72%). VANGUARD GROWTH INDEX FUND's +26.7% trailing return was led by market beta (+33.6% market); stock selection contributed -1.3%. Over the trailing window stock selection detracted (-5% of gross); the risk decomposition is the steadier read.Beta to SPY 1.21 explains 89% of NAV variance; ERM3's multifactor model captures 97% · modeled-vs-reported NAV correlation 0.99 over 244 months.Evidence — not a recommendation.
Key
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.