IBGB vs. BNDD

Last updated Jun 24, 2026

IBGB (iShares iBonds Dec 2045 Term Treasury ETF) and BNDD (Quadratic Deflation ETF) are both Government Bonds funds. IBGB is passively managed, while BNDD is actively managed. Over the past year, IBGB returned 4.20% vs 4.37% for BNDD. A 0.61 correlation means they provide meaningful diversification when combined. IBGB charges 0.07%/yr vs 1.02%/yr for BNDD.

Performance

IBGB vs. BNDD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Dec 2045 Term Treasury ETF (IBGB) and Quadratic Deflation ETF (BNDD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IBGB achieves a 0.41% return, which is significantly lower than BNDD's 6.53% return.

IBGB

• 1D: 0.16%
• 1M: 1.93%
• YTD: 0.41%
• 6M: 0.32%
• 1Y: 4.20%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BNDD

• 1D: -0.16%
• 1M: 3.05%
• YTD: 6.53%
• 6M: 5.33%
• 1Y: 4.37%
• 3Y*: -4.21%
• 5Y*: —
• 10Y*: —

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

IBGB vs. BNDD - Yearly Performance Comparison

	2026 (YTD)	2025
IBGB iShares iBonds Dec 2045 Term Treasury ETF	0.41%	2.62%
BNDD Quadratic Deflation ETF	6.53%	-7.28%

Correlation

The correlation between IBGB and BNDD is 0.57, 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	0.57
Correlation (All Time) Calculated using the full available price history since Mar 26, 2025	0.61

The correlation between IBGB and BNDD has been stable across timeframes, ranging from 0.57 to 0.61 - a consistent structural relationship.

Return for Risk

IBGB vs. BNDD — Risk / Return Rank

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

IBGB

IBGB Risk / Return Rank: 16
IBGB Sharpe Ratio Rank: 17
IBGB Sortino Ratio Rank: 16
IBGB Omega Ratio Rank: 15
IBGB Calmar Ratio Rank: 16
IBGB Martin Ratio Rank: 16

BNDD

BNDD Risk / Return Rank: 15
BNDD Sharpe Ratio Rank: 15
BNDD Sortino Ratio Rank: 14
BNDD Omega Ratio Rank: 14
BNDD Calmar Ratio Rank: 18
BNDD Martin Ratio Rank: 16

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.

IBGB vs. BNDD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2045 Term Treasury ETF (IBGB) and Quadratic Deflation ETF (BNDD). 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.

	IBGB	BNDD	Difference
Sharpe ratio: Return per unit of total volatility	0.51	0.42	+0.10
Sortino ratio: Return per unit of downside risk	0.79	0.66	+0.13
Omega ratio: Gain probability vs. loss probability	1.09	1.08	+0.01
Calmar ratio: Return relative to maximum drawdown	0.62	0.72	-0.10
Martin ratio: Return relative to average drawdown	1.58	1.55	+0.03

IBGB vs. BNDD - Sharpe Ratio Comparison

The current IBGB Sharpe Ratio is 0.51, which is comparable to the BNDD Sharpe Ratio of 0.42. The chart below compares the historical Sharpe Ratios of IBGB and BNDD, 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

IBGB vs. BNDD - Drawdown Comparison

The maximum IBGB drawdown since its inception was -8.09%, smaller than the maximum BNDD drawdown of -30.87%. Use the drawdown chart below to compare losses from any high point for IBGB and BNDD.

Drawdown Indicators

	IBGB	BNDD	Difference
Max Drawdown Largest peak-to-trough decline	-8.09%	-30.87%	+22.78%
Max Drawdown (1Y) Largest decline over 1 year	-6.79%	-6.09%	-0.70%
Max Drawdown (3Y) Largest decline over 3 years	—	-20.75%	—
Current Drawdown Current decline from peak	-3.41%	-24.94%	+21.53%
Average Drawdown Average peak-to-trough decline	-3.19%	-19.39%	+16.20%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.66%	2.82%	-0.16%

Volatility

IBGB vs. BNDD - Volatility Comparison

The current volatility for iShares iBonds Dec 2045 Term Treasury ETF (IBGB) is 2.00%, while Quadratic Deflation ETF (BNDD) has a volatility of 2.66%. This indicates that IBGB experiences smaller price fluctuations and is considered to be less risky than BNDD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IBGB	BNDD	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.00%	2.66%	-0.66%
Volatility (6M) Calculated over the trailing 6-month period	5.92%	8.27%	-2.35%
Volatility (1Y) Calculated over the trailing 1-year period	8.21%	10.49%	-2.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.45%	13.35%	-3.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.45%	13.35%	-3.90%

IBGB vs. BNDD - Expense Ratio Comparison

IBGB has a 0.07% expense ratio, which is lower than BNDD's 1.02% expense ratio.

Dividends

IBGB vs. BNDD - Dividend Comparison

IBGB's dividend yield for the trailing twelve months is around 4.60%, more than BNDD's 3.53% yield.

Position	TTM	2025	2024	2023	2022	2021
BNDD Quadratic Deflation ETF	3.53%	3.82%	3.85%	4.30%	43.17%	1.04%
IBGB iShares iBonds Dec 2045 Term Treasury ETF	4.60%	3.53%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IBGB and BNDD in my portfolio?

IBGB and BNDD have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IBGB or BNDD?

BNDD has higher volatility (2.66%) compared to IBGB (2.00%). In terms of maximum drawdown, IBGB dropped -8.09% vs BNDD's -30.87%.

Which ETF is better, IBGB or BNDD?

On 1-year performance, BNDD leads with 4.37% vs 4.20% for IBGB. On fees, IBGB is cheaper at 0.07% per year. On volatility, IBGB has been the lower-risk option at 2.00%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IBGB or BNDD?

Over the 1-year period, BNDD has performed better with a 4.37% return vs 4.20%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IBGB or BNDD?

IBGB is cheaper with a 0.07% expense ratio, compared with 1.02% for BNDD.

Which ETF pays a higher dividend yield, IBGB or BNDD?

IBGB has the higher dividend yield at 4.60%, compared with 3.53% for BNDD.

What is the main difference between IBGB and BNDD?

They also come from different issuers: iShares and KraneShares. Their fees differ too: 0.07% for IBGB and 1.02% for BNDD.

Which has better risk-adjusted returns?

IBGB currently has the higher Sharpe Ratio (0.51 vs 0.42), 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.