IBDW vs. VTC
IBDW (iShares iBonds Dec 2031 Term Corporate ETF) and VTC (Vanguard Total Corporate Bond ETF) are both Corporate Bonds funds - IBDW tracks the Bloomberg December 2031 Maturity Corporate Index while VTC tracks the Bloomberg U.S. Corporate Bond Index. Both are passively managed. Over the past 5 years, IBDW returned -0.05%/yr vs -0.28%/yr for VTC. Their correlation of 0.95 means they have usually moved in the same direction. IBDW charges 0.10%/yr vs 0.03%/yr for VTC.
Performance
IBDW vs. VTC - Performance Comparison
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Returns By Period
In the year-to-date period, IBDW achieves a -0.19% return, which is significantly higher than VTC's -0.67% return.
IBDW
- 1D
- -0.12%
- 1M
- -0.72%
- 6M
- -0.52%
- YTD
- -0.19%
- 1Y
- 2.32%
- 3Y*
- 5.88%
- 5Y*
- -0.05%
- 10Y*
- —
- ALL TIME*
- 0.38%
VTC
- 1D
- -0.19%
- 1M
- -1.67%
- 6M
- -1.09%
- YTD
- -0.67%
- 1Y
- 1.74%
- 3Y*
- 4.80%
- 5Y*
- -0.28%
- 10Y*
- —
- ALL TIME*
- 2.24%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $10.34M | $10.53M | $11.54M | |
| $4.41M | $5.24M | $7.07M |
IBDW vs. VTC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
IBDW iShares iBonds Dec 2031 Term Corporate ETF | -0.19% | 9.07% | 2.96% | 9.40% | -17.13% | 0.36% |
VTC Vanguard Total Corporate Bond ETF | -0.67% | 7.58% | 2.15% | 8.58% | -15.68% | 0.46% |
Correlation
The correlation between IBDW and VTC is 0.91, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.91 |
Correlation (3Y) Balances recent behavior with more history. | 0.95 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.95 |
Correlation (All Time) Calculated using the full available price history since Jun 24, 2021 | 0.95 |
The correlation between IBDW and VTC has been stable across timeframes, ranging from 0.91 to 0.95 - a consistent structural relationship.
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Return for Risk
IBDW vs. VTC — Risk / Return Rank
IBDW
VTC
IBDW vs. VTC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2031 Term Corporate ETF (IBDW) and Vanguard Total Corporate Bond ETF (VTC). 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.
| IBDW | VTC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.38 | ||
| Sortino ratioReturn per unit of downside risk | +0.58 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.10 | +0.07 |
| Calmar ratioReturn relative to maximum drawdown | 1.38 | 0.89 | +0.49 |
| Martin ratioReturn relative to average drawdown | 3.96 | 2.48 | +1.49 |
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Drawdowns
IBDW vs. VTC - Drawdown Comparison
The maximum IBDW drawdown since its inception was -23.87%, which is greater than VTC's maximum drawdown of -22.05%. Use the drawdown chart below to compare losses from any high point for IBDW and VTC.
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Drawdown Indicators
| IBDW | VTC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -23.87% | -22.05% | -1.82% |
Max Drawdown (1Y)Largest decline over 1 year | -2.42% | -2.88% | +0.46% |
Max Drawdown (3Y)Largest decline over 3 years | -5.61% | -5.25% | -0.36% |
Max Drawdown (5Y)Largest decline over 5 years | -23.80% | -22.05% | -1.75% |
Current DrawdownCurrent decline from peak | -1.46% | -2.24% | +0.78% |
Average DrawdownAverage peak-to-trough decline | -9.20% | -5.76% | -3.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.84% | 1.03% | -0.19% |
Volatility
IBDW vs. VTC - Volatility Comparison
The current volatility for iShares iBonds Dec 2031 Term Corporate ETF (IBDW) is 0.86%, while Vanguard Total Corporate Bond ETF (VTC) has a volatility of 1.11%. This indicates that IBDW experiences smaller price fluctuations and is considered to be less risky than VTC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBDW | VTC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.86% | 1.11% | -0.25% |
Volatility (6M)Calculated over the trailing 6-month period | 2.57% | 3.41% | -0.84% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.43% | 4.31% | -0.88% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.20% | 7.08% | +0.12% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.16% | 7.63% | -0.47% |
IBDW vs. VTC - Expense Ratio Comparison
IBDW has a 0.10% expense ratio, which is higher than VTC'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
IBDW vs. VTC - Dividend Comparison
IBDW's dividend yield for the trailing twelve months is around 4.81%, less than VTC's 5.02% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
IBDW iShares iBonds Dec 2031 Term Corporate ETF | 4.41% | 4.78% | 5.00% | 4.50% | 3.70% | 1.10% | 0.00% | 0.00% | 0.00% | 0.00% |
VTC Vanguard Total Corporate Bond ETF | 4.59% | 4.76% | 4.50% | 3.80% | 3.13% | 2.36% | 2.69% | 3.34% | 3.53% | 0.55% |
Frequently Asked Questions
With a correlation of 0.91, IBDW and VTC 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.
VTC has higher volatility (1.11%) compared to IBDW (0.86%). In terms of maximum drawdown, IBDW dropped -23.87% vs VTC's -22.05%.
On 5-year performance, IBDW leads with -0.05% vs -0.28% for VTC. On fees, VTC is cheaper at 0.03% per year. On volatility, IBDW has been the lower-risk option at 0.86%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, IBDW has performed better with a -0.05% return vs -0.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VTC is cheaper with a 0.03% expense ratio, compared with 0.10% for IBDW.
VTC has the higher dividend yield at 4.59%, compared with 4.41% for IBDW.
IBDW tracks Bloomberg December 2031 Maturity Corporate Index, while VTC tracks Bloomberg U.S. Corporate Bond Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.10% for IBDW and 0.03% for VTC.
IBDW currently has the higher Sharpe Ratio (0.97 vs 0.59), 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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