WBSIX vs. FECGX
Compare and contrast key facts about William Blair Small Cap Growth Fund (WBSIX) and Fidelity Small Cap Growth Index Fund (FECGX).
WBSIX is managed by William Blair. It was launched on Dec 27, 1999. FECGX is managed by Fidelity. It was launched on Jul 11, 2019.
Performance
WBSIX vs. FECGX - Performance Comparison
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WBSIX vs. FECGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
WBSIX William Blair Small Cap Growth Fund | -1.71% | 3.03% | 32.88% | 16.38% | -21.46% | 12.64% | 38.87% | 1.68% |
FECGX Fidelity Small Cap Growth Index Fund | -2.76% | 13.04% | 15.26% | 18.90% | -26.17% | 2.83% | 34.41% | 7.11% |
Returns By Period
In the year-to-date period, WBSIX achieves a -1.71% return, which is significantly higher than FECGX's -2.76% return.
WBSIX
- 1D
- 3.71%
- 1M
- -7.68%
- YTD
- -1.71%
- 6M
- 1.24%
- 1Y
- 13.76%
- 3Y*
- 13.68%
- 5Y*
- 4.70%
- 10Y*
- 13.48%
FECGX
- 1D
- 4.30%
- 1M
- -7.23%
- YTD
- -2.76%
- 6M
- -1.59%
- 1Y
- 23.61%
- 3Y*
- 12.36%
- 5Y*
- 1.42%
- 10Y*
- —
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WBSIX vs. FECGX - Expense Ratio Comparison
WBSIX has a 1.25% expense ratio, which is higher than FECGX's 0.05% expense ratio.
Return for Risk
WBSIX vs. FECGX — Risk / Return Rank
WBSIX
FECGX
WBSIX vs. FECGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for William Blair Small Cap Growth Fund (WBSIX) and Fidelity Small Cap Growth Index Fund (FECGX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| WBSIX | FECGX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.59 | 0.94 | -0.35 |
Sortino ratioReturn per unit of downside risk | 0.99 | 1.46 | -0.46 |
Omega ratioGain probability vs. loss probability | 1.13 | 1.18 | -0.06 |
Calmar ratioReturn relative to maximum drawdown | 0.83 | 1.53 | -0.70 |
Martin ratioReturn relative to average drawdown | 2.77 | 5.20 | -2.43 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| WBSIX | FECGX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.59 | 0.94 | -0.35 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.20 | 0.06 | +0.14 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.59 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.52 | 0.28 | +0.23 |
Correlation
The correlation between WBSIX and FECGX is 0.96, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
WBSIX vs. FECGX - Dividend Comparison
WBSIX's dividend yield for the trailing twelve months is around 7.62%, more than FECGX's 0.56% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
WBSIX William Blair Small Cap Growth Fund | 7.62% | 7.49% | 20.14% | 1.53% | 3.55% | 17.85% | 9.73% | 2.07% | 12.60% | 16.89% | 5.42% | 8.25% |
FECGX Fidelity Small Cap Growth Index Fund | 0.56% | 0.54% | 1.25% | 0.81% | 0.80% | 3.43% | 1.00% | 0.29% | 0.00% | 0.00% | 0.00% | 0.00% |
Drawdowns
WBSIX vs. FECGX - Drawdown Comparison
The maximum WBSIX drawdown since its inception was -62.35%, which is greater than FECGX's maximum drawdown of -41.85%. Use the drawdown chart below to compare losses from any high point for WBSIX and FECGX.
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Drawdown Indicators
| WBSIX | FECGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -62.35% | -41.85% | -20.50% |
Max Drawdown (1Y)Largest decline over 1 year | -13.31% | -14.81% | +1.50% |
Max Drawdown (5Y)Largest decline over 5 years | -38.13% | -40.34% | +2.21% |
Max Drawdown (10Y)Largest decline over 10 years | -39.16% | — | — |
Current DrawdownCurrent decline from peak | -9.52% | -11.15% | +1.63% |
Average DrawdownAverage peak-to-trough decline | -11.20% | -16.11% | +4.91% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.97% | 4.36% | -0.39% |
Volatility
WBSIX vs. FECGX - Volatility Comparison
The current volatility for William Blair Small Cap Growth Fund (WBSIX) is 7.98%, while Fidelity Small Cap Growth Index Fund (FECGX) has a volatility of 8.83%. This indicates that WBSIX experiences smaller price fluctuations and is considered to be less risky than FECGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WBSIX | FECGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.98% | 8.83% | -0.85% |
Volatility (6M)Calculated over the trailing 6-month period | 15.31% | 16.56% | -1.25% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.77% | 25.37% | -1.60% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.83% | 24.52% | -0.69% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.94% | 27.32% | -4.38% |