AGGU.L vs. GLAU.L

Last updated Jun 5, 2026

AGGU.L (iShares Core Global Aggregate Bond UCITS ETF) and GLAU.L (SPDR Bloomberg Global Aggregate Bond UCITS ETF USD Hedged) are both Global Bonds funds - AGGU.L tracks the Bloomberg Global Aggregate Bond Index while GLAU.L tracks the Bloomberg Global Aggregate TR Hdg USD. Both are passively managed. Over the past 5 years, AGGU.L returned 0.58%/yr vs 0.73%/yr for GLAU.L. At a 0.38 correlation, their price movements are largely independent. Both charge a 0.10% expense ratio.

Performance

AGGU.L vs. GLAU.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core Global Aggregate Bond UCITS ETF (AGGU.L) and SPDR Bloomberg Global Aggregate Bond UCITS ETF USD Hedged (GLAU.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AGGU.L achieves a 0.36% return, which is significantly lower than GLAU.L's 0.41% return.

AGGU.L

• 1D: 0.09%
• 1M: 0.15%
• YTD: 0.36%
• 6M: 0.66%
• 1Y: 3.26%
• 3Y*: 4.17%
• 5Y*: 0.58%
• 10Y*: —

GLAU.L

• 1D: 0.25%
• 1M: 0.56%
• YTD: 0.41%
• 6M: 0.72%
• 1Y: 3.45%
• 3Y*: 4.27%
• 5Y*: 0.73%
• 10Y*: —

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

AGGU.L vs. GLAU.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
AGGU.L iShares Core Global Aggregate Bond UCITS ETF	0.36%	4.72%	3.45%	6.71%	-11.53%	-1.81%	5.15%	8.16%	1.70%
GLAU.L SPDR Bloomberg Global Aggregate Bond UCITS ETF USD Hedged	0.41%	4.62%	3.58%	6.07%	-11.13%	-1.01%	5.46%	7.95%	1.58%

Correlation

The correlation between AGGU.L and GLAU.L is 0.69, 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	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.50
Correlation (5Y) Calculated over the trailing 5-year period	0.43
Correlation (All Time) Calculated using the full available price history since Jun 28, 2018	0.38

Over the past year, AGGU.L and GLAU.L have become more correlated (0.69) than their long-term average of 0.38, meaning their price movements have been converging.

Return for Risk

AGGU.L vs. GLAU.L — Risk / Return Rank

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

AGGU.L

AGGU.L Risk / Return Rank: 30
AGGU.L Sharpe Ratio Rank: 30
AGGU.L Sortino Ratio Rank: 30
AGGU.L Omega Ratio Rank: 28
AGGU.L Calmar Ratio Rank: 30
AGGU.L Martin Ratio Rank: 31

GLAU.L

GLAU.L Risk / Return Rank: 37
GLAU.L Sharpe Ratio Rank: 36
GLAU.L Sortino Ratio Rank: 37
GLAU.L Omega Ratio Rank: 36
GLAU.L Calmar Ratio Rank: 40
GLAU.L Martin Ratio Rank: 34

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.

AGGU.L vs. GLAU.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core Global Aggregate Bond UCITS ETF (AGGU.L) and SPDR Bloomberg Global Aggregate Bond UCITS ETF USD Hedged (GLAU.L). 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.

	AGGU.L	GLAU.L	Difference
Sharpe ratio: Return per unit of total volatility	1.06	1.28	-0.22
Sortino ratio: Return per unit of downside risk	1.55	1.89	-0.34
Omega ratio: Gain probability vs. loss probability	1.19	1.23	-0.05
Calmar ratio: Return relative to maximum drawdown	1.45	1.95	-0.50
Martin ratio: Return relative to average drawdown	4.44	5.07	-0.62
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AGGU.L vs. GLAU.L - Sharpe Ratio Comparison

The current AGGU.L Sharpe Ratio is 1.06, which is comparable to the GLAU.L Sharpe Ratio of 1.28. The chart below compares the historical Sharpe Ratios of AGGU.L and GLAU.L, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	AGGU.L	GLAU.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.06	1.28	-0.22
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.12	0.24	-0.12
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	0.83	-0.43

Drawdowns

AGGU.L vs. GLAU.L - Drawdown Comparison

The maximum AGGU.L drawdown since its inception was -15.55%, which is greater than GLAU.L's maximum drawdown of -14.72%. Use the drawdown chart below to compare losses from any high point for AGGU.L and GLAU.L.

Drawdown Indicators

	AGGU.L	GLAU.L	Difference
Max Drawdown Largest peak-to-trough decline	-15.55%	-14.72%	-0.83%
Max Drawdown (1Y) Largest decline over 1 year	-2.24%	-2.36%	+0.12%
Max Drawdown (3Y) Largest decline over 3 years	-3.48%	-3.11%	-0.37%
Max Drawdown (5Y) Largest decline over 5 years	-15.20%	-14.58%	-0.62%
Current Drawdown Current decline from peak	-1.02%	-1.01%	-0.01%
Average Drawdown Average peak-to-trough decline	-3.90%	-3.48%	-0.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.73%	0.84%	-0.11%

Volatility

AGGU.L vs. GLAU.L - Volatility Comparison

The current volatility for iShares Core Global Aggregate Bond UCITS ETF (AGGU.L) is 1.26%, while SPDR Bloomberg Global Aggregate Bond UCITS ETF USD Hedged (GLAU.L) has a volatility of 1.56%. This indicates that AGGU.L experiences smaller price fluctuations and is considered to be less risky than GLAU.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AGGU.L	GLAU.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.26%	1.56%	-0.30%
Volatility (6M) Calculated over the trailing 6-month period	2.56%	2.72%	-0.16%
Volatility (1Y) Calculated over the trailing 1-year period	3.08%	3.61%	-0.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.77%	6.86%	-2.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.43%	7.03%	-2.60%

AGGU.L vs. GLAU.L - Expense Ratio Comparison

Both AGGU.L and GLAU.L 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

AGGU.L vs. GLAU.L - Dividend Comparison

AGGU.L has not paid dividends to shareholders, while GLAU.L's dividend yield for the trailing twelve months is around 3.15%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
AGGU.L iShares Core Global Aggregate Bond UCITS ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
GLAU.L SPDR Bloomberg Global Aggregate Bond UCITS ETF USD Hedged	3.15%	3.02%	2.71%	2.02%	1.40%	1.21%	1.51%	1.25%	0.89%

Frequently Asked Questions

Can I hold both AGGU.L and GLAU.L in my portfolio?

AGGU.L and GLAU.L have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, AGGU.L or GLAU.L?

Both ETFs have the same 0.10% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, AGGU.L or GLAU.L?

AGGU.L and GLAU.L have the same expense ratio: 0.10% per year.

What is the main difference between AGGU.L and GLAU.L?

AGGU.L tracks Bloomberg Global Aggregate Bond Index, while GLAU.L tracks Bloomberg Global Aggregate TR Hdg USD. They also come from different issuers: iShares and State Street.