IUSU.L vs. GSPX.L

Last updated Jun 5, 2026

IUSU.L (iShares V PLC - iShares S&P 500 Utilities Sector UCITS ETF) and GSPX.L (iShares Core S&P 500 UCITS ETF) are both exchange-traded funds - IUSU.L is a Utilities Equities fund tracking the S&P 500 Capped 35/20 Utilities, while GSPX.L is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 5 years, IUSU.L returned 9.60%/yr vs 12.56%/yr for GSPX.L. At a 0.21 correlation, their price movements are largely independent. IUSU.L charges 0.15%/yr vs 0.10%/yr for GSPX.L.

Performance

IUSU.L vs. GSPX.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares V PLC - iShares S&P 500 Utilities Sector UCITS ETF (IUSU.L) and iShares Core S&P 500 UCITS ETF (GSPX.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

IUSU.L is traded in GBp, while GSPX.L is traded in GBP. To make them comparable, the GSPX.L values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, IUSU.L achieves a 1.75% return, which is significantly lower than GSPX.L's 10.04% return.

IUSU.L

• 1D: -2.12%
• 1M: -5.89%
• YTD: 1.75%
• 6M: -0.56%
• 1Y: 9.56%
• 3Y*: 9.72%
• 5Y*: 9.60%
• 10Y*: —

GSPX.L

• 1D: -0.03%
• 1M: 4.53%
• YTD: 10.04%
• 6M: 10.80%
• 1Y: 27.24%
• 3Y*: 21.42%
• 5Y*: 12.56%
• 10Y*: —

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

IUSU.L vs. GSPX.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
IUSU.L iShares V PLC - iShares S&P 500 Utilities Sector UCITS ETF	1.75%	7.65%	25.08%	-13.15%	14.26%	19.91%	-4.85%	21.27%	5.43%
GSPX.L iShares Core S&P 500 UCITS ETF	10.04%	17.15%	24.63%	24.88%	-20.60%	28.94%	15.10%	27.75%	-8.17%

Correlation

The correlation between IUSU.L and GSPX.L is 0.02, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.02
Correlation (3Y) Calculated over the trailing 3-year period	0.10
Correlation (5Y) Calculated over the trailing 5-year period	0.17
Correlation (All Time) Calculated using the full available price history since Jul 4, 2018	0.21

The correlation between IUSU.L and GSPX.L shifts across timeframes, from 0.02 (1 year) to 0.21 (all time), reflecting how their relationship changes across market environments.

IUSU.L vs. GSPX.L - Sectors Allocation Comparison

Sectors	IUSU.L	GSPX.L
Utilities	100.0%	2.6%
Basic Materials	-	1.7%
Communication Services	-	10.6%
Consumer Cyclical	-	9.6%
Consumer Defensive	-	4.6%
Energy	-	3.3%
Financial Services	-	11.3%
Healthcare	-	8.2%
Industrials	-	7.6%
Real Estate	-	1.7%
Technology	-	38.6%

Return for Risk

IUSU.L vs. GSPX.L — Risk / Return Rank

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

IUSU.L

IUSU.L Risk / Return Rank: 20
IUSU.L Sharpe Ratio Rank: 19
IUSU.L Sortino Ratio Rank: 19
IUSU.L Omega Ratio Rank: 19
IUSU.L Calmar Ratio Rank: 23
IUSU.L Martin Ratio Rank: 19

GSPX.L

GSPX.L Risk / Return Rank: 73
GSPX.L Sharpe Ratio Rank: 73
GSPX.L Sortino Ratio Rank: 77
GSPX.L Omega Ratio Rank: 74
GSPX.L Calmar Ratio Rank: 65
GSPX.L Martin Ratio Rank: 75

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.

IUSU.L vs. GSPX.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares V PLC - iShares S&P 500 Utilities Sector UCITS ETF (IUSU.L) and iShares Core S&P 500 UCITS ETF (GSPX.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.

	IUSU.L	GSPX.L	Difference
Sharpe ratio: Return per unit of total volatility	0.65	2.34	-1.70
Sortino ratio: Return per unit of downside risk	0.98	3.39	-2.41
Omega ratio: Gain probability vs. loss probability	1.12	1.43	-0.31
Calmar ratio: Return relative to maximum drawdown	1.00	3.22	-2.21
Martin ratio: Return relative to average drawdown	2.13	14.09	-11.96
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IUSU.L vs. GSPX.L - Sharpe Ratio Comparison

The current IUSU.L Sharpe Ratio is 0.65, which is lower than the GSPX.L Sharpe Ratio of 2.34. The chart below compares the historical Sharpe Ratios of IUSU.L and GSPX.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

	IUSU.L	GSPX.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.65	2.34	-1.70
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.57	0.78	-0.21
Sharpe Ratio (All Time) Calculated using the full available price history	0.42	0.78	-0.36

Drawdowns

IUSU.L vs. GSPX.L - Drawdown Comparison

The maximum IUSU.L drawdown since its inception was -29.89%, smaller than the maximum GSPX.L drawdown of -34.88%. Use the drawdown chart below to compare losses from any high point for IUSU.L and GSPX.L.

Drawdown Indicators

	IUSU.L	GSPX.L	Difference
Max Drawdown Largest peak-to-trough decline	-29.89%	-34.88%	+4.99%
Max Drawdown (1Y) Largest decline over 1 year	-9.51%	-8.43%	-1.08%
Max Drawdown (3Y) Largest decline over 3 years	-13.82%	-18.91%	+5.09%
Max Drawdown (5Y) Largest decline over 5 years	-29.89%	-25.77%	-4.12%
Current Drawdown Current decline from peak	-9.06%	-0.52%	-8.54%
Average Drawdown Average peak-to-trough decline	-8.80%	-5.61%	-3.19%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.47%	1.93%	+2.54%

Volatility

IUSU.L vs. GSPX.L - Volatility Comparison

iShares V PLC - iShares S&P 500 Utilities Sector UCITS ETF (IUSU.L) has a higher volatility of 5.31% compared to iShares Core S&P 500 UCITS ETF (GSPX.L) at 3.17%. This indicates that IUSU.L's price experiences larger fluctuations and is considered to be riskier than GSPX.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IUSU.L	GSPX.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.31%	3.17%	+2.14%
Volatility (6M) Calculated over the trailing 6-month period	12.29%	8.48%	+3.81%
Volatility (1Y) Calculated over the trailing 1-year period	14.75%	11.57%	+3.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.69%	16.05%	+0.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.28%	17.63%	+0.65%

IUSU.L vs. GSPX.L - Expense Ratio Comparison

IUSU.L has a 0.15% expense ratio, which is higher than GSPX.L's 0.10% 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

IUSU.L vs. GSPX.L - Dividend Comparison

IUSU.L has not paid dividends to shareholders, while GSPX.L's dividend yield for the trailing twelve months is around 0.80%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
GSPX.L iShares Core S&P 500 UCITS ETF	0.80%	0.89%	0.99%	1.15%	1.40%	0.96%	1.31%	1.50%	0.11%
IUSU.L iShares V PLC - iShares S&P 500 Utilities Sector UCITS ETF	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 IUSU.L and GSPX.L in my portfolio?

IUSU.L and GSPX.L have a correlation of 0.02, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IUSU.L or GSPX.L?

On fees, GSPX.L is cheaper at 0.10% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IUSU.L or GSPX.L?

GSPX.L is cheaper with a 0.10% expense ratio, compared with 0.15% for IUSU.L.

What is the main difference between IUSU.L and GSPX.L?

IUSU.L is categorized as Utilities Equities, while GSPX.L is S&P 500. IUSU.L tracks S&P 500 Capped 35/20 Utilities, while GSPX.L tracks S&P 500 Index. Their fees differ too: 0.15% for IUSU.L and 0.10% for GSPX.L.