IUSB vs. EXR
IUSB (iShares Core Universal USD Bond ETF) is Intermediate Core-Plus Bond fund tracking the Bloomberg U.S. Universal Index, while EXR (Extra Space Storage Inc.) is a stock. Over the past 10 years, IUSB returned 1.89%/yr vs 9.41%/yr for EXR. At a 0.23 correlation, their price movements are largely independent.
Performance
IUSB vs. EXR - Performance Comparison
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Returns By Period
In the year-to-date period, IUSB achieves a 0.54% return, which is significantly lower than EXR's 14.71% return. Over the past 10 years, IUSB has underperformed EXR with an annualized return of 1.89%, while EXR has yielded a comparatively higher 9.41% annualized return.
IUSB
- 1D
- -0.28%
- 1M
- 0.57%
- YTD
- 0.54%
- 6M
- 0.62%
- 1Y
- 4.82%
- 3Y*
- 4.47%
- 5Y*
- 0.40%
- 10Y*
- 1.89%
EXR
- 1D
- 0.52%
- 1M
- 3.05%
- YTD
- 14.71%
- 6M
- 14.24%
- 1Y
- 4.67%
- 3Y*
- 5.47%
- 5Y*
- 1.60%
- 10Y*
- 9.41%
IUSB vs. EXR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 0.54% | 7.38% | 2.11% | 6.23% | -13.04% | -1.33% | 7.62% | 9.13% | -0.27% | 3.82% |
EXR Extra Space Storage Inc. | 14.71% | -8.92% | -2.81% | 13.86% | -32.82% | 100.98% | 13.64% | 20.71% | 7.29% | 17.83% |
Correlation
The correlation between IUSB and EXR is 0.38, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.38 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.35 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.30 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.26 |
Correlation (All Time) Calculated using the full available price history since Jun 12, 2014 | 0.23 |
The correlation between IUSB and EXR shifts across timeframes, from 0.23 (all time) to 0.38 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
IUSB vs. EXR — Risk / Return Rank
IUSB
EXR
IUSB vs. EXR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core Universal USD Bond ETF (IUSB) and Extra Space Storage Inc. (EXR). 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.
| IUSB | EXR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.16 | ||
| Sortino ratioReturn per unit of downside risk | +1.60 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.05 | +0.18 |
| Calmar ratioReturn relative to maximum drawdown | 1.92 | 0.28 | +1.64 |
| Martin ratioReturn relative to average drawdown | 5.54 | 0.57 | +4.96 |
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Drawdowns
IUSB vs. EXR - Drawdown Comparison
The maximum IUSB drawdown since its inception was -17.90%, smaller than the maximum EXR drawdown of -71.22%. Use the drawdown chart below to compare losses from any high point for IUSB and EXR.
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Drawdown Indicators
| IUSB | EXR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.90% | -71.22% | +53.32% |
Max Drawdown (1Y)Largest decline over 1 year | -2.53% | -16.70% | +14.17% |
Max Drawdown (3Y)Largest decline over 3 years | -5.82% | -33.78% | +27.96% |
Max Drawdown (5Y)Largest decline over 5 years | -17.87% | -51.36% | +33.49% |
Max Drawdown (10Y)Largest decline over 10 years | -17.90% | -51.36% | +33.46% |
Current DrawdownCurrent decline from peak | -1.22% | -22.32% | +21.10% |
Average DrawdownAverage peak-to-trough decline | -3.58% | -13.39% | +9.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.87% | 8.17% | -7.30% |
Volatility
IUSB vs. EXR - Volatility Comparison
The current volatility for iShares Core Universal USD Bond ETF (IUSB) is 1.08%, while Extra Space Storage Inc. (EXR) has a volatility of 5.60%. This indicates that IUSB experiences smaller price fluctuations and is considered to be less risky than EXR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IUSB | EXR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.08% | 5.60% | -4.52% |
Volatility (6M)Calculated over the trailing 6-month period | 2.73% | 16.83% | -14.10% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.59% | 24.93% | -21.34% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.80% | 28.22% | -22.42% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.05% | 26.95% | -21.90% |
Dividends
IUSB vs. EXR - Dividend Comparison
IUSB's dividend yield for the trailing twelve months is around 4.23%, less than EXR's 4.44% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EXR Extra Space Storage Inc. | 4.44% | 4.98% | 4.33% | 4.04% | 4.08% | 1.98% | 3.11% | 3.37% | 3.71% | 3.57% | 3.79% | 2.54% |
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
IUSB and EXR have a correlation of 0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
EXR has higher volatility (5.60%) compared to IUSB (1.08%). In terms of maximum drawdown, IUSB dropped -17.90% vs EXR's -71.22%.
IUSB currently has the higher Sharpe Ratio (1.35 vs 0.19), 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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