IBDS vs. BSCZ
IBDS (iShares iBonds Dec 2027 Term Corporate ETF) and BSCZ (Invesco BulletShares 2035 Corporate Bond ETF) are both Corporate Bonds funds - IBDS tracks the Bloomberg Barclays December 2027 Maturity Corporate Index while BSCZ tracks the BulletShares® USD Corporate Bond 2035 Index. Both are passively managed. Over the past year, IBDS returned 4.33% vs 5.27% for BSCZ. A 0.67 correlation means they provide meaningful diversification when combined. Both charge a 0.10% expense ratio.
Performance
IBDS vs. BSCZ - Performance Comparison
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Returns By Period
In the year-to-date period, IBDS achieves a 1.40% return, which is significantly higher than BSCZ's 0.26% return.
IBDS
- 1D
- 0.08%
- 1M
- 0.27%
- YTD
- 1.40%
- 6M
- 1.61%
- 1Y
- 4.33%
- 3Y*
- 5.41%
- 5Y*
- 1.47%
- 10Y*
- —
BSCZ
- 1D
- 0.10%
- 1M
- 0.62%
- YTD
- 0.26%
- 6M
- 0.46%
- 1Y
- 5.27%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBDS vs. BSCZ - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
IBDS iShares iBonds Dec 2027 Term Corporate ETF | 1.40% | 3.30% |
BSCZ Invesco BulletShares 2035 Corporate Bond ETF | 0.26% | 5.67% |
Correlation
The correlation between IBDS and BSCZ is 0.67, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.67 |
Correlation (All Time) Calculated using the full available price history since Jun 11, 2025 | 0.67 |
The correlation between IBDS and BSCZ has been stable across timeframes, ranging from 0.67 to 0.67 - a consistent structural relationship.
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Return for Risk
IBDS vs. BSCZ — Risk / Return Rank
IBDS
BSCZ
IBDS vs. BSCZ - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2027 Term Corporate ETF (IBDS) and Invesco BulletShares 2035 Corporate Bond ETF (BSCZ). 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.
| IBDS | BSCZ | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +3.02 | ||
| Sortino ratioReturn per unit of downside risk | +6.29 | ||
| Omega ratioGain probability vs. loss probability | 2.08 | 1.19 | +0.89 |
| Calmar ratioReturn relative to maximum drawdown | 10.00 | 1.62 | +8.39 |
| Martin ratioReturn relative to average drawdown | 46.90 | 4.90 | +42.01 |
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Drawdowns
IBDS vs. BSCZ - Drawdown Comparison
The maximum IBDS drawdown since its inception was -16.75%, which is greater than BSCZ's maximum drawdown of -3.28%. Use the drawdown chart below to compare losses from any high point for IBDS and BSCZ.
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Drawdown Indicators
| IBDS | BSCZ | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.75% | -3.28% | -13.47% |
Max Drawdown (1Y)Largest decline over 1 year | -0.43% | -3.28% | +2.85% |
Max Drawdown (3Y)Largest decline over 3 years | -2.27% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -14.98% | — | — |
Current DrawdownCurrent decline from peak | 0.00% | -1.38% | +1.38% |
Average DrawdownAverage peak-to-trough decline | -3.34% | -0.78% | -2.56% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.09% | 1.08% | -0.99% |
Volatility
IBDS vs. BSCZ - Volatility Comparison
The current volatility for iShares iBonds Dec 2027 Term Corporate ETF (IBDS) is 0.19%, while Invesco BulletShares 2035 Corporate Bond ETF (BSCZ) has a volatility of 1.41%. This indicates that IBDS experiences smaller price fluctuations and is considered to be less risky than BSCZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBDS | BSCZ | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.19% | 1.41% | -1.22% |
Volatility (6M)Calculated over the trailing 6-month period | 0.62% | 3.82% | -3.20% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.07% | 5.02% | -3.95% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.17% | 5.00% | -0.83% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.53% | 5.00% | +0.53% |
IBDS vs. BSCZ - Expense Ratio Comparison
Both IBDS and BSCZ have an expense ratio of 0.10%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IBDS vs. BSCZ - Dividend Comparison
IBDS's dividend yield for the trailing twelve months is around 4.31%, less than BSCZ's 4.52% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
BSCZ Invesco BulletShares 2035 Corporate Bond ETF | 4.52% | 2.18% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
IBDS iShares iBonds Dec 2027 Term Corporate ETF | 4.31% | 4.36% | 4.37% | 3.81% | 2.87% | 2.19% | 2.66% | 3.32% | 3.66% | 0.97% |
Frequently Asked Questions
IBDS and BSCZ have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BSCZ has higher volatility (1.41%) compared to IBDS (0.19%). In terms of maximum drawdown, IBDS dropped -16.75% vs BSCZ's -3.28%.
On 1-year performance, BSCZ leads with 5.27% vs 4.33% for IBDS. Both ETFs have the same 0.10% expense ratio. On volatility, IBDS has been the lower-risk option at 0.19%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, BSCZ has performed better with a 5.27% return vs 4.33%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBDS and BSCZ have the same expense ratio: 0.10% per year.
BSCZ has the higher dividend yield at 4.52%, compared with 4.31% for IBDS.
IBDS tracks Bloomberg Barclays December 2027 Maturity Corporate Index, while BSCZ tracks BulletShares® USD Corporate Bond 2035 Index. They also come from different issuers: iShares and Invesco.
IBDS currently has the higher Sharpe Ratio (4.08 vs 1.06), 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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