SLXX.L vs. XZBU.L

Last updated Jun 5, 2026

SLXX.L (iShares Core £ Corp Bond UCITS ETF) and XZBU.L (Xtrackers USD Corporate Bond SRI PAB UCITS ETF 1C) are both Corporate Bonds funds - SLXX.L tracks the Markit iBoxx GBP Liquid Corporates Large Cap Index while XZBU.L tracks the Bloomberg US Corp Bond TR USD. Both are passively managed. At a 0.42 correlation, their price movements are largely independent. SLXX.L charges 0.20%/yr vs 0.16%/yr for XZBU.L.

Performance

SLXX.L vs. XZBU.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares Core £ Corp Bond UCITS ETF (SLXX.L) and Xtrackers USD Corporate Bond SRI PAB UCITS ETF 1C (XZBU.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

SLXX.L

• 1D: 0.21%
• 1M: 2.07%
• YTD: -0.09%
• 6M: 0.15%
• 1Y: 4.74%
• 3Y*: 5.83%
• 5Y*: -0.77%
• 10Y*: 1.80%

XZBU.L

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SLXX.L vs. XZBU.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
SLXX.L iShares Core £ Corp Bond UCITS ETF	-0.09%	6.50%	1.60%	8.54%	-18.36%	-4.01%	3.75%
XZBU.L Xtrackers USD Corporate Bond SRI PAB UCITS ETF 1C	34.27%	0.67%	2.68%	2.98%	-8.73%	-0.87%	-2.84%

Correlation

The correlation between SLXX.L and XZBU.L is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.13
Correlation (3Y) Calculated over the trailing 3-year period	0.41
Correlation (5Y) Calculated over the trailing 5-year period	0.41
Correlation (All Time) Calculated using the full available price history since Sep 11, 2020	0.42

Over the past year, the correlation between SLXX.L and XZBU.L has dropped to 0.13 - well below their long-term average of 0.42, suggesting their price drivers have been diverging.

Return for Risk

SLXX.L vs. XZBU.L — Risk / Return Rank

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

SLXX.L

SLXX.L Risk / Return Rank: 24
SLXX.L Sharpe Ratio Rank: 24
SLXX.L Sortino Ratio Rank: 24
SLXX.L Omega Ratio Rank: 24
SLXX.L Calmar Ratio Rank: 24
SLXX.L Martin Ratio Rank: 26

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.

SLXX.L vs. XZBU.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core £ Corp Bond UCITS ETF (SLXX.L) and Xtrackers USD Corporate Bond SRI PAB UCITS ETF 1C (XZBU.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.

	SLXX.L	XZBU.L	Difference
Sharpe ratio: Return per unit of total volatility	0.85	—	—
Sortino ratio: Return per unit of downside risk	1.25	—	—
Omega ratio: Gain probability vs. loss probability	1.16	—	—
Calmar ratio: Return relative to maximum drawdown	1.11	—	—
Martin ratio: Return relative to average drawdown	3.47	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	SLXX.L	XZBU.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.85	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.10	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.22	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.44	—	—

Drawdowns

Drawdown Indicators

	SLXX.L	XZBU.L	Difference
Max Drawdown Largest peak-to-trough decline	-30.27%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-4.25%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-4.25%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-29.34%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-30.27%	—	—
Current Drawdown Current decline from peak	-8.12%	—	—
Average Drawdown Average peak-to-trough decline	-5.61%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	1.37%	—	—

Volatility

Volatility by Period

	SLXX.L	XZBU.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.11%	—	—
Volatility (6M) Calculated over the trailing 6-month period	4.81%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	5.59%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	8.06%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.08%	—	—

SLXX.L vs. XZBU.L - Expense Ratio Comparison

SLXX.L has a 0.20% expense ratio, which is higher than XZBU.L's 0.16% 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

SLXX.L vs. XZBU.L - Dividend Comparison

SLXX.L's dividend yield for the trailing twelve months is around 4.93%, while XZBU.L has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SLXX.L iShares Core £ Corp Bond UCITS ETF	4.93%	4.82%	4.68%	4.06%	2.75%	2.06%	2.12%	2.44%	2.71%	2.73%	2.99%	3.39%
XZBU.L Xtrackers USD Corporate Bond SRI PAB UCITS ETF 1C	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SLXX.L and XZBU.L in my portfolio?

SLXX.L and XZBU.L have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, SLXX.L or XZBU.L?

On fees, XZBU.L is cheaper at 0.16% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, SLXX.L or XZBU.L?

XZBU.L is cheaper with a 0.16% expense ratio, compared with 0.20% for SLXX.L.

What is the main difference between SLXX.L and XZBU.L?

SLXX.L tracks Markit iBoxx GBP Liquid Corporates Large Cap Index, while XZBU.L tracks Bloomberg US Corp Bond TR USD. They also come from different issuers: iShares and Xtrackers. Their fees differ too: 0.20% for SLXX.L and 0.16% for XZBU.L.