BSIIX vs. ACSNX
BSIIX (BlackRock Strategic Income Opportunities Fund Class I) and ACSNX (American Century Short Duration Fund) are both mutual funds - BSIIX is a Total Bond Market fund managed by BlackRock, while ACSNX is a Short-Term Bond fund managed by American Century. Over the past 10 years, BSIIX returned 3.85%/yr vs 2.29%/yr for ACSNX. A 0.52 correlation means they provide meaningful diversification when combined. BSIIX charges 0.69%/yr vs 0.57%/yr for ACSNX.
Performance
BSIIX vs. ACSNX - Performance Comparison
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Returns By Period
In the year-to-date period, BSIIX achieves a 2.00% return, which is significantly higher than ACSNX's 0.65% return. Over the past 10 years, BSIIX has outperformed ACSNX with an annualized return of 3.85%, while ACSNX has yielded a comparatively lower 2.29% annualized return.
BSIIX
- 1D
- -0.10%
- 1M
- 1.02%
- YTD
- 2.00%
- 6M
- 2.57%
- 1Y
- 6.95%
- 3Y*
- 6.84%
- 5Y*
- 3.01%
- 10Y*
- 3.85%
ACSNX
- 1D
- 0.10%
- 1M
- 0.35%
- YTD
- 0.65%
- 6M
- 1.13%
- 1Y
- 3.92%
- 3Y*
- 4.92%
- 5Y*
- 2.19%
- 10Y*
- 2.29%
BSIIX vs. ACSNX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSIIX BlackRock Strategic Income Opportunities Fund Class I | 2.00% | 8.59% | 5.22% | 6.18% | -6.14% | 0.80% | 7.22% | 7.65% | -0.42% | 4.89% |
ACSNX American Century Short Duration Fund | 0.65% | 5.65% | 4.69% | 4.72% | -4.68% | 0.97% | 4.03% | 3.95% | 1.35% | 1.42% |
Correlation
The correlation between BSIIX and ACSNX is 0.72, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.72 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.78 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.73 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.60 |
Correlation (All Time) Calculated using the full available price history since Feb 7, 2008 | 0.52 |
The correlation between BSIIX and ACSNX shifts across timeframes, from 0.52 (all time) to 0.78 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
BSIIX vs. ACSNX — Risk / Return Rank
BSIIX
ACSNX
BSIIX vs. ACSNX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for BlackRock Strategic Income Opportunities Fund Class I (BSIIX) and American Century Short Duration Fund (ACSNX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BSIIX | ACSNX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.29 | ||
| Sortino ratioReturn per unit of downside risk | -0.24 | ||
| Omega ratioGain probability vs. loss probability | 1.50 | 1.56 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | 2.46 | 3.25 | -0.79 |
| Martin ratioReturn relative to average drawdown | 9.49 | 13.22 | -3.72 |
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Drawdowns
BSIIX vs. ACSNX - Drawdown Comparison
The maximum BSIIX drawdown since its inception was -18.76%, which is greater than ACSNX's maximum drawdown of -6.50%. Use the drawdown chart below to compare losses from any high point for BSIIX and ACSNX.
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Drawdown Indicators
| BSIIX | ACSNX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.76% | -6.50% | -12.26% |
Max Drawdown (1Y)Largest decline over 1 year | -2.84% | -1.21% | -1.63% |
Max Drawdown (3Y)Largest decline over 3 years | -2.84% | -1.21% | -1.63% |
Max Drawdown (5Y)Largest decline over 5 years | -9.13% | -6.50% | -2.63% |
Max Drawdown (10Y)Largest decline over 10 years | -9.91% | -6.50% | -3.41% |
Current DrawdownCurrent decline from peak | -0.31% | -0.31% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -1.80% | -0.59% | -1.21% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.73% | 0.30% | +0.43% |
Volatility
BSIIX vs. ACSNX - Volatility Comparison
BlackRock Strategic Income Opportunities Fund Class I (BSIIX) has a higher volatility of 0.92% compared to American Century Short Duration Fund (ACSNX) at 0.72%. This indicates that BSIIX's price experiences larger fluctuations and is considered to be riskier than ACSNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BSIIX | ACSNX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.92% | 0.72% | +0.20% |
Volatility (6M)Calculated over the trailing 6-month period | 2.37% | 1.43% | +0.94% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.96% | 1.91% | +1.05% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.65% | 2.21% | +1.44% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.15% | 1.92% | +1.23% |
BSIIX vs. ACSNX - Expense Ratio Comparison
BSIIX has a 0.69% expense ratio, which is higher than ACSNX's 0.57% expense ratio.
Dividends
BSIIX vs. ACSNX - Dividend Comparison
BSIIX's dividend yield for the trailing twelve months is around 5.15%, more than ACSNX's 4.39% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACSNX American Century Short Duration Fund | 4.39% | 4.55% | 4.56% | 3.96% | 1.60% | 1.74% | 1.51% | 2.59% | 2.53% | 1.91% | 1.62% | 1.73% |
BSIIX BlackRock Strategic Income Opportunities Fund Class I | 5.15% | 5.07% | 4.75% | 3.33% | 3.58% | 2.98% | 2.92% | 3.54% | 3.32% | 3.45% | 2.91% | 3.19% |
Frequently Asked Questions
BSIIX and ACSNX have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BSIIX has higher volatility (0.92%) compared to ACSNX (0.72%). In terms of maximum drawdown, BSIIX dropped -18.76% vs ACSNX's -6.50%.
BSIIX currently has the higher Sharpe Ratio (2.36 vs 2.07), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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