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William Blair Small Cap Growth Fund (WBSIX) Diversifiers

Mutual Fund · Currency in USD · Last updated Jun 3, 2026

The fund normally invests at least 80% of its net assets in stocks of small capitalized ("small cap") companies. It invests primarily in a diversified portfolio of equity securities, including common stocks and other forms of equity investments, of small cap domestic growth companies that are expected to exhibit quality growth characteristics. For purposes of the fund, the advisor considers a company to be a small cap company if it has a market capitalization no larger than the largest capitalized company included in the Russell 2000 Index at the time of the fund's investment.

Looking to diversify beyond WBSIX? The mutual funds below have the lowest correlation with WBSIX — they tend to move on their own, which can help reduce risk when the rest of your portfolio drops. The stock ideas table highlights individual companies that behave independently from WBSIX.

Best Diversifiers for WBSIX

1 mutual funds have low correlation with WBSIX (below 0.3), 0 of which are negatively correlated. The least correlated is William Blair Emerging Markets Small Cap Growth Fund (BESIX) (Emerging Markets Diversified) with a 1Y correlation of 0.28, down from 0.40 over 5 years.

SymbolNameCorrelation 1YCorrelation 3YCorrelation 5YRisk / Return RankCategoryCompare
BESIX
William Blair Emerging Markets Small Cap Growth Fu...0.280.360.40
71
Emerging Markets DiversifiedWBSIX vs BESIX
WBEIX
William Blair Emerging Markets Growth Fund0.320.420.45
86
Emerging Markets DiversifiedWBSIX vs WBEIX
WXCIX
William Blair Emerging Markets ex China Growth Fun...0.330.39—
95
Emerging Markets EquitiesWBSIX vs WXCIX
WEDIX
William Blair Emerging Markets Debt Fund0.360.320.31
92
Emerging Markets BondsWBSIX vs WEDIX
FBGRX
Fidelity Blue Chip Growth Fund0.660.690.79
75
Large Cap Growth EquitiesWBSIX vs FBGRX
See all 17 diversifiers for WBSIX

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