BBSOX vs. BSIIX
BBSOX (BlackRock Short Obligations Fund) and BSIIX (BlackRock Strategic Income Opportunities Fund Class I) are both mutual funds - BBSOX is a Ultrashort Bond fund managed by BlackRock, while BSIIX is a Total Bond Market fund managed by BlackRock. Over the past 10 years, BBSOX returned 2.47%/yr vs 3.60%/yr for BSIIX. Their 0.37 correlation means their historical movements had little consistent relationship. BBSOX charges 0.30%/yr vs 0.69%/yr for BSIIX.
Performance
BBSOX vs. BSIIX - Performance Comparison
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Returns By Period
In the year-to-date period, BBSOX achieves a 1.72% return, which is significantly higher than BSIIX's 1.03% return. Over the past 10 years, BBSOX has underperformed BSIIX with an annualized return of 2.47%, while BSIIX has yielded a comparatively higher 3.60% annualized return.
BBSOX
- 1D
- 0.00%
- 1M
- 0.00%
- 6M
- 1.37%
- YTD
- 1.72%
- 1Y
- 3.60%
- 3Y*
- 4.68%
- 5Y*
- 3.31%
- 10Y*
- 2.47%
- ALL TIME*
- 2.00%
BSIIX
- 1D
- 0.10%
- 1M
- -1.13%
- 6M
- 0.11%
- YTD
- 1.03%
- 1Y
- 4.24%
- 3Y*
- 6.24%
- 5Y*
- 2.75%
- 10Y*
- 3.60%
- ALL TIME*
- 3.91%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
BBSOX vs. BSIIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BBSOX BlackRock Short Obligations Fund | 1.72% | 4.74% | 5.36% | 4.36% | 0.60% | -0.10% | 1.54% | 3.01% | 1.96% | 1.18% |
BSIIX BlackRock Strategic Income Opportunities Fund Class I | 1.03% | 8.59% | 5.22% | 6.18% | -6.14% | 0.80% | 7.22% | 7.65% | -0.42% | 4.89% |
Correlation
The correlation between BBSOX and BSIIX is 0.43, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.43 |
Correlation (3Y) Balances recent behavior with more history. | 0.47 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.45 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.40 |
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013 | 0.37 |
The correlation between BBSOX and BSIIX shifts across timeframes, from 0.37 (all time) to 0.47 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
BBSOX vs. BSIIX — Risk / Return Rank
BBSOX
BSIIX
BBSOX vs. BSIIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for BlackRock Short Obligations Fund (BBSOX) and BlackRock Strategic Income Opportunities Fund Class I (BSIIX). 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.
| BBSOX | BSIIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.49 | ||
| Sortino ratioReturn per unit of downside risk | +8.31 | ||
| Omega ratioGain probability vs. loss probability | 3.90 | 1.33 | +2.57 |
| Calmar ratioReturn relative to maximum drawdown | 20.77 | 1.76 | +19.01 |
| Martin ratioReturn relative to average drawdown | 65.78 | 6.43 | +59.35 |
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Drawdowns
BBSOX vs. BSIIX - Drawdown Comparison
The maximum BBSOX drawdown since its inception was -1.59%, smaller than the maximum BSIIX drawdown of -18.76%. Use the drawdown chart below to compare losses from any high point for BBSOX and BSIIX.
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Drawdown Indicators
| BBSOX | BSIIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -1.59% | -18.76% | +17.17% |
Max Drawdown (1Y)Largest decline over 1 year | -0.20% | -2.84% | +2.64% |
Max Drawdown (3Y)Largest decline over 3 years | -0.30% | -2.84% | +2.54% |
Max Drawdown (5Y)Largest decline over 5 years | -1.00% | -9.13% | +8.13% |
Max Drawdown (10Y)Largest decline over 10 years | -1.59% | -9.91% | +8.32% |
Current DrawdownCurrent decline from peak | -0.10% | -1.25% | +1.15% |
Average DrawdownAverage peak-to-trough decline | -0.08% | -1.80% | +1.72% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.06% | 0.78% | -0.72% |
Volatility
BBSOX vs. BSIIX - Volatility Comparison
The current volatility for BlackRock Short Obligations Fund (BBSOX) is 0.14%, while BlackRock Strategic Income Opportunities Fund Class I (BSIIX) has a volatility of 0.69%. This indicates that BBSOX experiences smaller price fluctuations and is considered to be less risky than BSIIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BBSOX | BSIIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.14% | 0.69% | -0.55% |
Volatility (6M)Calculated over the trailing 6-month period | 0.91% | 2.44% | -1.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.30% | 2.99% | -1.69% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.27% | 3.04% | -1.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.03% | 3.15% | -2.12% |
BBSOX vs. BSIIX - Expense Ratio Comparison
BBSOX has a 0.30% expense ratio, which is lower than BSIIX's 0.69% expense ratio.
Dividends
BBSOX vs. BSIIX - Dividend Comparison
BBSOX's dividend yield for the trailing twelve months is around 3.83%, less than BSIIX's 4.83% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BBSOX BlackRock Short Obligations Fund | 3.83% | 4.43% | 5.01% | 3.35% | 1.29% | 0.30% | 1.13% | 2.56% | 2.24% | 1.17% | 1.03% | 0.62% |
BSIIX BlackRock Strategic Income Opportunities Fund Class I | 4.83% | 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
BBSOX and BSIIX have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BSIIX has higher volatility (0.69%) compared to BBSOX (0.14%). In terms of maximum drawdown, BBSOX dropped -1.59% vs BSIIX's -18.76%.
BBSOX currently has the higher Sharpe Ratio (3.17 vs 1.67), 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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