IBDZ vs. VCIT
IBDZ (iShares iBonds Dec 2034 Term Corporate ETF) and VCIT (Vanguard Intermediate-Term Corporate Bond ETF) are both Corporate Bonds funds - IBDZ tracks the iBonds Dec 2034 Term Corporate Index while VCIT tracks the Barclays U.S. 5-10 Year Corp Index. Both are passively managed. Over the past year, IBDZ returned 6.65% vs 6.13% for VCIT. Their correlation of 0.92 suggests significant overlap in exposure. IBDZ charges 0.10%/yr vs 0.04%/yr for VCIT.
Performance
IBDZ vs. VCIT - Performance Comparison
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Returns By Period
In the year-to-date period, IBDZ achieves a 0.34% return, which is significantly higher than VCIT's 0.18% return.
IBDZ
- 1D
- -0.19%
- 1M
- 0.37%
- YTD
- 0.34%
- 6M
- 0.33%
- 1Y
- 6.65%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
VCIT
- 1D
- -0.22%
- 1M
- 0.28%
- YTD
- 0.18%
- 6M
- 0.07%
- 1Y
- 6.13%
- 3Y*
- 6.00%
- 5Y*
- 1.22%
- 10Y*
- 2.93%
IBDZ vs. VCIT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
IBDZ iShares iBonds Dec 2034 Term Corporate ETF | 0.34% | 8.84% | 4.23% |
VCIT Vanguard Intermediate-Term Corporate Bond ETF | 0.18% | 9.34% | 3.93% |
Correlation
The correlation between IBDZ and VCIT is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.95 |
Correlation (All Time) Calculated using the full available price history since May 28, 2024 | 0.92 |
The correlation between IBDZ and VCIT has been stable across timeframes, ranging from 0.92 to 0.95 - a consistent structural relationship.
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Return for Risk
IBDZ vs. VCIT — Risk / Return Rank
IBDZ
VCIT
IBDZ vs. VCIT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2034 Term Corporate ETF (IBDZ) and Vanguard Intermediate-Term Corporate Bond ETF (VCIT). 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.
| IBDZ | VCIT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.09 | ||
| Sortino ratioReturn per unit of downside risk | -0.13 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.27 | -0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.19 | 2.08 | +0.11 |
| Martin ratioReturn relative to average drawdown | 7.12 | 6.95 | +0.18 |
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
| IBDZ | VCIT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.41 | 1.50 | -0.09 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.19 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.47 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.06 | 0.75 | +0.31 |
Drawdowns
IBDZ vs. VCIT - Drawdown Comparison
The maximum IBDZ drawdown since its inception was -5.57%, smaller than the maximum VCIT drawdown of -20.56%. Use the drawdown chart below to compare losses from any high point for IBDZ and VCIT.
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Drawdown Indicators
| IBDZ | VCIT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.57% | -20.56% | +14.99% |
Max Drawdown (1Y)Largest decline over 1 year | -3.04% | -2.96% | -0.08% |
Max Drawdown (3Y)Largest decline over 3 years | — | -6.11% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -20.56% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -20.56% | — |
Current DrawdownCurrent decline from peak | -1.26% | -1.36% | +0.10% |
Average DrawdownAverage peak-to-trough decline | -1.28% | -3.16% | +1.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.94% | 0.88% | +0.06% |
Volatility
IBDZ vs. VCIT - Volatility Comparison
iShares iBonds Dec 2034 Term Corporate ETF (IBDZ) and Vanguard Intermediate-Term Corporate Bond ETF (VCIT) have volatilities of 1.43% and 1.38%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBDZ | VCIT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.43% | 1.38% | +0.05% |
Volatility (6M)Calculated over the trailing 6-month period | 3.32% | 3.06% | +0.26% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.74% | 4.10% | +0.64% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.27% | 6.61% | -0.34% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.27% | 6.28% | -0.01% |
IBDZ vs. VCIT - Expense Ratio Comparison
IBDZ has a 0.10% expense ratio, which is higher than VCIT's 0.04% 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
IBDZ vs. VCIT - Dividend Comparison
IBDZ's dividend yield for the trailing twelve months is around 4.86%, more than VCIT's 4.80% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IBDZ iShares iBonds Dec 2034 Term Corporate ETF | 4.86% | 4.85% | 2.50% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
VCIT Vanguard Intermediate-Term Corporate Bond ETF | 4.80% | 4.62% | 4.43% | 3.72% | 3.03% | 2.87% | 2.78% | 3.37% | 3.61% | 3.21% | 3.29% | 3.34% |
Frequently Asked Questions
With a correlation of 0.95, IBDZ and VCIT 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.
IBDZ has higher volatility (1.43%) compared to VCIT (1.38%). In terms of maximum drawdown, IBDZ dropped -5.57% vs VCIT's -20.56%.
On 1-year performance, IBDZ leads with 6.65% vs 6.13% for VCIT. On fees, VCIT is cheaper at 0.04% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBDZ has performed better with a 6.65% return vs 6.13%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VCIT is cheaper with a 0.04% expense ratio, compared with 0.10% for IBDZ.
IBDZ has the higher dividend yield at 4.86%, compared with 4.80% for VCIT.
IBDZ tracks iBonds Dec 2034 Term Corporate Index, while VCIT tracks Barclays U.S. 5-10 Year Corp Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.10% for IBDZ and 0.04% for VCIT.
VCIT currently has the higher Sharpe Ratio (1.50 vs 1.41), 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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