IUSB vs. DBLTX
IUSB (iShares Core Universal USD Bond ETF) and DBLTX (DoubleLine Total Return Bond Fund Class I) are both funds - IUSB is a Intermediate Core-Plus Bond fund tracking the Bloomberg U.S. Universal Index, while DBLTX is a Total Bond Market fund managed by DoubleLine. Over the past 10 years, IUSB returned 1.94%/yr vs 1.78%/yr for DBLTX. Their correlation of 0.85 suggests significant overlap in exposure. IUSB charges 0.06%/yr vs 0.50%/yr for DBLTX.
Performance
IUSB vs. DBLTX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, IUSB achieves a 0.43% return, which is significantly higher than DBLTX's 0.01% return. Over the past 10 years, IUSB has outperformed DBLTX with an annualized return of 1.94%, while DBLTX has yielded a comparatively lower 1.78% annualized return.
IUSB
- 1D
- -0.17%
- 1M
- 0.31%
- YTD
- 0.43%
- 6M
- 0.31%
- 1Y
- 5.54%
- 3Y*
- 4.51%
- 5Y*
- 0.44%
- 10Y*
- 1.94%
DBLTX
- 1D
- 0.00%
- 1M
- 0.16%
- YTD
- 0.01%
- 6M
- 0.00%
- 1Y
- 5.41%
- 3Y*
- 4.54%
- 5Y*
- 0.66%
- 10Y*
- 1.78%
IUSB vs. DBLTX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 0.43% | 7.38% | 2.11% | 6.23% | -13.04% | -1.33% | 7.62% | 9.13% | -0.27% | 3.82% |
DBLTX DoubleLine Total Return Bond Fund Class I | 0.01% | 8.05% | 3.08% | 5.34% | -12.56% | 0.24% | 4.13% | 5.81% | 1.76% | 3.80% |
Correlation
The correlation between IUSB and DBLTX is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.93 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.95 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.94 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Jun 13, 2014 | 0.85 |
The correlation between IUSB and DBLTX shifts across timeframes, from 0.85 (all time) to 0.95 (3 years), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IUSB vs. DBLTX — Risk / Return Rank
IUSB
DBLTX
IUSB vs. DBLTX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core Universal USD Bond ETF (IUSB) and DoubleLine Total Return Bond Fund Class I (DBLTX). 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.
| IUSB | DBLTX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.16 | ||
| Sortino ratioReturn per unit of downside risk | +0.25 | ||
| Omega ratioGain probability vs. loss probability | 1.27 | 1.25 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.20 | 1.68 | +0.53 |
| Martin ratioReturn relative to average drawdown | 6.68 | 5.13 | +1.55 |
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 charts...
Sharpe Ratios by Period
| IUSB | DBLTX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.54 | 1.38 | +0.16 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.08 | 0.12 | -0.04 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.39 | 0.40 | -0.02 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.46 | 0.91 | -0.45 |
Drawdowns
IUSB vs. DBLTX - Drawdown Comparison
The maximum IUSB drawdown since its inception was -17.90%, which is greater than DBLTX's maximum drawdown of -16.49%. Use the drawdown chart below to compare losses from any high point for IUSB and DBLTX.
Loading charts...
Drawdown Indicators
| IUSB | DBLTX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.90% | -16.49% | -1.41% |
Max Drawdown (1Y)Largest decline over 1 year | -2.53% | -3.17% | +0.64% |
Max Drawdown (3Y)Largest decline over 3 years | -5.82% | -6.59% | +0.77% |
Max Drawdown (5Y)Largest decline over 5 years | -17.87% | -16.49% | -1.38% |
Max Drawdown (10Y)Largest decline over 10 years | -17.90% | -16.49% | -1.41% |
Current DrawdownCurrent decline from peak | -1.33% | -2.00% | +0.67% |
Average DrawdownAverage peak-to-trough decline | -3.59% | -2.38% | -1.21% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.83% | 1.03% | -0.20% |
Volatility
IUSB vs. DBLTX - Volatility Comparison
The current volatility for iShares Core Universal USD Bond ETF (IUSB) is 1.24%, while DoubleLine Total Return Bond Fund Class I (DBLTX) has a volatility of 1.38%. This indicates that IUSB experiences smaller price fluctuations and is considered to be less risky than DBLTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| IUSB | DBLTX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.24% | 1.38% | -0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 2.62% | 2.78% | -0.16% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.62% | 3.87% | -0.25% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.79% | 5.60% | +0.19% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.04% | 4.41% | +0.63% |
IUSB vs. DBLTX - Expense Ratio Comparison
IUSB has a 0.06% expense ratio, which is lower than DBLTX's 0.50% expense ratio.
Dividends
IUSB vs. DBLTX - Dividend Comparison
IUSB's dividend yield for the trailing twelve months is around 4.23%, less than DBLTX's 4.89% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DBLTX DoubleLine Total Return Bond Fund Class I | 4.89% | 4.86% | 5.03% | 4.35% | 3.86% | 3.12% | 3.39% | 3.66% | 3.74% | 3.65% | 3.72% | 4.11% |
IUSB iShares Core Universal USD Bond ETF | 4.23% | 4.17% | 4.04% | 3.46% | 2.53% | 1.74% | 2.68% | 3.04% | 2.98% | 2.56% | 2.60% | 1.95% |
Frequently Asked Questions
With a correlation of 0.93, IUSB and DBLTX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
DBLTX has higher volatility (1.38%) compared to IUSB (1.24%). In terms of maximum drawdown, IUSB dropped -17.90% vs DBLTX's -16.49%.
IUSB currently has the higher Sharpe Ratio (1.54 vs 1.38), 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.
Find the right allocation for IUSB and DBLTX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer