IGSB vs. WBSIX
Compare and contrast key facts about iShares Short-Term Corporate Bond ETF (IGSB) and William Blair Small Cap Growth Fund (WBSIX).
IGSB is a passively managed fund by iShares that tracks the performance of the ICE BofAML 1-5 Year US Corporate Index. It was launched on Jan 11, 2007. WBSIX is managed by William Blair. It was launched on Dec 27, 1999.
Performance
IGSB vs. WBSIX - Performance Comparison
Loading graphics...
IGSB vs. WBSIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IGSB iShares Short-Term Corporate Bond ETF | 0.14% | 6.96% | 4.97% | 6.40% | -5.63% | -0.56% | 5.37% | 7.11% | 1.25% | 1.27% |
WBSIX William Blair Small Cap Growth Fund | -5.23% | 3.03% | 32.88% | 16.38% | -21.46% | 12.64% | 38.87% | 22.53% | -2.08% | 26.81% |
Returns By Period
In the year-to-date period, IGSB achieves a 0.14% return, which is significantly higher than WBSIX's -5.23% return. Over the past 10 years, IGSB has underperformed WBSIX with an annualized return of 2.74%, while WBSIX has yielded a comparatively higher 13.07% annualized return.
IGSB
- 1D
- 0.27%
- 1M
- -0.89%
- YTD
- 0.14%
- 6M
- 1.38%
- 1Y
- 4.98%
- 3Y*
- 5.48%
- 5Y*
- 2.45%
- 10Y*
- 2.74%
WBSIX
- 1D
- -1.26%
- 1M
- -10.26%
- YTD
- -5.23%
- 6M
- -2.35%
- 1Y
- 9.76%
- 3Y*
- 12.31%
- 5Y*
- 4.37%
- 10Y*
- 13.07%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
IGSB vs. WBSIX - Expense Ratio Comparison
IGSB has a 0.06% expense ratio, which is lower than WBSIX's 1.25% expense ratio.
Return for Risk
IGSB vs. WBSIX — Risk / Return Rank
IGSB
WBSIX
IGSB vs. WBSIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Short-Term Corporate Bond ETF (IGSB) and William Blair Small Cap Growth Fund (WBSIX). 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.
| IGSB | WBSIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 2.18 | 0.40 | +1.78 |
Sortino ratioReturn per unit of downside risk | 3.22 | 0.74 | +2.49 |
Omega ratioGain probability vs. loss probability | 1.45 | 1.09 | +0.36 |
Calmar ratioReturn relative to maximum drawdown | 3.46 | 0.45 | +3.00 |
Martin ratioReturn relative to average drawdown | 14.27 | 1.56 | +12.71 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| IGSB | WBSIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.18 | 0.40 | +1.78 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.85 | 0.18 | +0.66 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.79 | 0.57 | +0.22 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.70 | 0.51 | +0.19 |
Correlation
The correlation between IGSB and WBSIX is 0.06, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
IGSB vs. WBSIX - Dividend Comparison
IGSB's dividend yield for the trailing twelve months is around 4.51%, less than WBSIX's 7.90% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IGSB iShares Short-Term Corporate Bond ETF | 4.15% | 4.44% | 4.02% | 3.26% | 2.07% | 1.82% | 2.36% | 3.06% | 2.46% | 1.65% | 1.45% | 1.18% |
WBSIX William Blair Small Cap Growth Fund | 7.90% | 7.49% | 20.14% | 1.53% | 3.55% | 17.85% | 9.73% | 2.07% | 12.60% | 16.89% | 5.42% | 8.25% |
Drawdowns
IGSB vs. WBSIX - Drawdown Comparison
The maximum IGSB drawdown since its inception was -13.38%, smaller than the maximum WBSIX drawdown of -62.35%. Use the drawdown chart below to compare losses from any high point for IGSB and WBSIX.
Loading graphics...
Drawdown Indicators
| IGSB | WBSIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -13.38% | -62.35% | +48.97% |
Max Drawdown (1Y)Largest decline over 1 year | -1.46% | -13.31% | +11.85% |
Max Drawdown (5Y)Largest decline over 5 years | -9.46% | -38.13% | +28.67% |
Max Drawdown (10Y)Largest decline over 10 years | -13.38% | -39.16% | +25.78% |
Current DrawdownCurrent decline from peak | -0.89% | -12.75% | +11.86% |
Average DrawdownAverage peak-to-trough decline | -0.85% | -11.20% | +10.35% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.35% | 4.02% | -3.67% |
Volatility
IGSB vs. WBSIX - Volatility Comparison
The current volatility for iShares Short-Term Corporate Bond ETF (IGSB) is 0.96%, while William Blair Small Cap Growth Fund (WBSIX) has a volatility of 6.91%. This indicates that IGSB experiences smaller price fluctuations and is considered to be less risky than WBSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| IGSB | WBSIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.96% | 6.91% | -5.95% |
Volatility (6M)Calculated over the trailing 6-month period | 1.32% | 14.89% | -13.57% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.29% | 23.53% | -21.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.91% | 23.78% | -20.87% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.46% | 22.91% | -19.45% |