IBGA vs. BIV
IBGA (iShares iBonds Dec 2044 Term Treasury ETF) and BIV (Vanguard Intermediate-Term Bond Index ETF) are both Intermediate Core Bond funds - IBGA tracks the ICE 2044 Maturity US Treasury Index while BIV tracks the Bloomberg U.S. 5–10 Year Government/Credit Float Adjusted Bond Index. Both are passively managed. Over the past year, IBGA returned 5.33% vs 4.80% for BIV. Their correlation of 0.93 suggests significant overlap in exposure. IBGA charges 0.07%/yr vs 0.03%/yr for BIV.
Performance
IBGA vs. BIV - Performance Comparison
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Returns By Period
In the year-to-date period, IBGA achieves a -0.37% return, which is significantly lower than BIV's -0.24% return.
IBGA
- 1D
- -0.41%
- 1M
- 0.62%
- YTD
- -0.37%
- 6M
- -1.42%
- 1Y
- 5.33%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
BIV
- 1D
- -0.22%
- 1M
- 0.04%
- YTD
- -0.24%
- 6M
- -0.48%
- 1Y
- 4.80%
- 3Y*
- 4.27%
- 5Y*
- 0.25%
- 10Y*
- 1.91%
IBGA vs. BIV - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
IBGA iShares iBonds Dec 2044 Term Treasury ETF | -0.37% | 6.09% | -1.41% |
BIV Vanguard Intermediate-Term Bond Index ETF | -0.24% | 8.52% | 1.94% |
Correlation
The correlation between IBGA and BIV is 0.92, 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 | 0.92 |
Correlation (All Time) Calculated using the full available price history since Jun 13, 2024 | 0.93 |
The correlation between IBGA and BIV has been stable across timeframes, ranging from 0.92 to 0.93 - a consistent structural relationship.
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Return for Risk
IBGA vs. BIV — Risk / Return Rank
IBGA
BIV
IBGA vs. BIV - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2044 Term Treasury ETF (IBGA) and Vanguard Intermediate-Term Bond Index ETF (BIV). 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.
| IBGA | BIV | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.54 | ||
| Sortino ratioReturn per unit of downside risk | -0.78 | ||
| Omega ratioGain probability vs. loss probability | 1.11 | 1.21 | -0.09 |
| Calmar ratioReturn relative to maximum drawdown | 0.81 | 1.52 | -0.71 |
| Martin ratioReturn relative to average drawdown | 2.23 | 4.60 | -2.37 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| IBGA | BIV | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.65 | 1.19 | -0.54 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.04 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.35 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.22 | 0.65 | -0.43 |
Drawdowns
IBGA vs. BIV - Drawdown Comparison
The maximum IBGA drawdown since its inception was -11.69%, smaller than the maximum BIV drawdown of -18.95%. Use the drawdown chart below to compare losses from any high point for IBGA and BIV.
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Drawdown Indicators
| IBGA | BIV | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -11.69% | -18.95% | +7.26% |
Max Drawdown (1Y)Largest decline over 1 year | -6.60% | -3.18% | -3.42% |
Max Drawdown (3Y)Largest decline over 3 years | — | -6.07% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -18.74% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -18.95% | — |
Current DrawdownCurrent decline from peak | -4.67% | -2.04% | -2.63% |
Average DrawdownAverage peak-to-trough decline | -5.05% | -3.39% | -1.66% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.40% | 1.05% | +1.35% |
Volatility
IBGA vs. BIV - Volatility Comparison
iShares iBonds Dec 2044 Term Treasury ETF (IBGA) has a higher volatility of 2.59% compared to Vanguard Intermediate-Term Bond Index ETF (BIV) at 1.36%. This indicates that IBGA's price experiences larger fluctuations and is considered to be riskier than BIV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBGA | BIV | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.59% | 1.36% | +1.23% |
Volatility (6M)Calculated over the trailing 6-month period | 5.68% | 2.90% | +2.78% |
Volatility (1Y)Calculated over the trailing 1-year period | 8.21% | 4.06% | +4.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 9.86% | 6.40% | +3.46% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 9.86% | 5.50% | +4.36% |
IBGA vs. BIV - Expense Ratio Comparison
IBGA has a 0.07% expense ratio, which is higher than BIV's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
IBGA vs. BIV - Dividend Comparison
IBGA's dividend yield for the trailing twelve months is around 4.66%, more than BIV's 4.22% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BIV Vanguard Intermediate-Term Bond Index ETF | 4.22% | 4.01% | 3.79% | 3.09% | 2.41% | 3.42% | 2.95% | 2.75% | 2.88% | 2.69% | 3.01% | 3.02% |
IBGA iShares iBonds Dec 2044 Term Treasury ETF | 4.66% | 4.49% | 2.03% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.92, IBGA and BIV 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.
IBGA has higher volatility (2.59%) compared to BIV (1.36%). In terms of maximum drawdown, IBGA dropped -11.69% vs BIV's -18.95%.
On 1-year performance, IBGA leads with 5.33% vs 4.80% for BIV. On fees, BIV is cheaper at 0.03% per year. On volatility, BIV has been the lower-risk option at 1.36%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBGA has performed better with a 5.33% return vs 4.80%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BIV is cheaper with a 0.03% expense ratio, compared with 0.07% for IBGA.
IBGA has the higher dividend yield at 4.66%, compared with 4.22% for BIV.
IBGA tracks ICE 2044 Maturity US Treasury Index, while BIV tracks Bloomberg U.S. 5–10 Year Government/Credit Float Adjusted Bond Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.07% for IBGA and 0.03% for BIV.
BIV currently has the higher Sharpe Ratio (1.19 vs 0.65), 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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