BSCZ vs. IBDS

Last updated Jun 23, 2026

BSCZ (Invesco BulletShares 2035 Corporate Bond ETF) and IBDS (iShares iBonds Dec 2027 Term Corporate ETF) are both Corporate Bonds funds - BSCZ tracks the BulletShares® USD Corporate Bond 2035 Index while IBDS tracks the Bloomberg Barclays December 2027 Maturity Corporate Index. Both are passively managed. Over the past year, BSCZ returned 5.48% vs 4.39% for IBDS. A 0.68 correlation means they provide meaningful diversification when combined. Both charge a 0.10% expense ratio.

Performance

BSCZ vs. IBDS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco BulletShares 2035 Corporate Bond ETF (BSCZ) and iShares iBonds Dec 2027 Term Corporate ETF (IBDS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BSCZ achieves a 0.16% return, which is significantly lower than IBDS's 1.32% return.

BSCZ

• 1D: -0.26%
• 1M: 0.52%
• YTD: 0.16%
• 6M: 0.41%
• 1Y: 5.48%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBDS

• 1D: 0.00%
• 1M: 0.19%
• YTD: 1.32%
• 6M: 1.48%
• 1Y: 4.39%
• 3Y*: 5.38%
• 5Y*: 1.47%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

BSCZ vs. IBDS - Yearly Performance Comparison

	2026 (YTD)	2025
BSCZ Invesco BulletShares 2035 Corporate Bond ETF	0.16%	5.67%
IBDS iShares iBonds Dec 2027 Term Corporate ETF	1.32%	3.30%

Correlation

The correlation between BSCZ and IBDS is 0.68, 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	0.68
Correlation (All Time) Calculated using the full available price history since Jun 11, 2025	0.68

The correlation between BSCZ and IBDS has been stable across timeframes, ranging from 0.68 to 0.68 - a consistent structural relationship.

Return for Risk

BSCZ vs. IBDS — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BSCZ

BSCZ Risk / Return Rank: 32
BSCZ Sharpe Ratio Rank: 31
BSCZ Sortino Ratio Rank: 31
BSCZ Omega Ratio Rank: 29
BSCZ Calmar Ratio Rank: 35
BSCZ Martin Ratio Rank: 35

IBDS

IBDS Risk / Return Rank: 97
IBDS Sharpe Ratio Rank: 96
IBDS Sortino Ratio Rank: 98
IBDS Omega Ratio Rank: 98
IBDS Calmar Ratio Rank: 97
IBDS Martin Ratio Rank: 98

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BSCZ vs. IBDS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco BulletShares 2035 Corporate Bond ETF (BSCZ) and iShares iBonds Dec 2027 Term Corporate ETF (IBDS). 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.

	BSCZ	IBDS	Difference
Sharpe ratio: Return per unit of total volatility	1.10	4.12	-3.02
Sortino ratio: Return per unit of downside risk	1.62	7.96	-6.34
Omega ratio: Gain probability vs. loss probability	1.19	2.10	-0.90
Calmar ratio: Return relative to maximum drawdown	1.68	10.15	-8.47
Martin ratio: Return relative to average drawdown	5.11	47.61	-42.50

BSCZ vs. IBDS - Sharpe Ratio Comparison

The current BSCZ Sharpe Ratio is 1.10, which is lower than the IBDS Sharpe Ratio of 4.12. The chart below compares the historical Sharpe Ratios of BSCZ and IBDS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BSCZ vs. IBDS - Drawdown Comparison

The maximum BSCZ drawdown since its inception was -3.28%, smaller than the maximum IBDS drawdown of -16.75%. Use the drawdown chart below to compare losses from any high point for BSCZ and IBDS.

Drawdown Indicators

	BSCZ	IBDS	Difference
Max Drawdown Largest peak-to-trough decline	-3.28%	-16.75%	+13.47%
Max Drawdown (1Y) Largest decline over 1 year	-3.28%	-0.43%	-2.85%
Max Drawdown (3Y) Largest decline over 3 years	—	-2.27%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-14.98%	—
Current Drawdown Current decline from peak	-1.48%	-0.08%	-1.40%
Average Drawdown Average peak-to-trough decline	-0.78%	-3.34%	+2.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.07%	0.09%	+0.98%

Volatility

BSCZ vs. IBDS - Volatility Comparison

Invesco BulletShares 2035 Corporate Bond ETF (BSCZ) has a higher volatility of 1.41% compared to iShares iBonds Dec 2027 Term Corporate ETF (IBDS) at 0.18%. This indicates that BSCZ's price experiences larger fluctuations and is considered to be riskier than IBDS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BSCZ	IBDS	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.41%	0.18%	+1.23%
Volatility (6M) Calculated over the trailing 6-month period	3.83%	0.62%	+3.21%
Volatility (1Y) Calculated over the trailing 1-year period	5.03%	1.07%	+3.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.01%	4.17%	+0.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.01%	5.53%	-0.52%

BSCZ vs. IBDS - Expense Ratio Comparison

Both BSCZ and IBDS 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

BSCZ vs. IBDS - Dividend Comparison

BSCZ's dividend yield for the trailing twelve months is around 4.53%, more than IBDS's 4.32% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
BSCZ Invesco BulletShares 2035 Corporate Bond ETF	4.53%	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	4.32%	4.36%	4.37%	3.81%	2.87%	2.19%	2.66%	3.32%	3.66%	0.97%

Frequently Asked Questions

Can I hold both BSCZ and IBDS in my portfolio?

BSCZ and IBDS have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BSCZ or IBDS?

BSCZ has higher volatility (1.41%) compared to IBDS (0.18%). In terms of maximum drawdown, BSCZ dropped -3.28% vs IBDS's -16.75%.

Which ETF is better, BSCZ or IBDS?

On 1-year performance, BSCZ leads with 5.48% vs 4.39% for IBDS. Both ETFs have the same 0.10% expense ratio. On volatility, IBDS has been the lower-risk option at 0.18%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BSCZ or IBDS?

Over the 1-year period, BSCZ has performed better with a 5.48% return vs 4.39%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BSCZ or IBDS?

BSCZ and IBDS have the same expense ratio: 0.10% per year.

Which ETF pays a higher dividend yield, BSCZ or IBDS?

BSCZ has the higher dividend yield at 4.53%, compared with 4.32% for IBDS.

What is the main difference between BSCZ and IBDS?

BSCZ tracks BulletShares® USD Corporate Bond 2035 Index, while IBDS tracks Bloomberg Barclays December 2027 Maturity Corporate Index. They also come from different issuers: Invesco and iShares.

Which has better risk-adjusted returns?

IBDS currently has the higher Sharpe Ratio (4.12 vs 1.10), 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.