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IUSA.L vs. UC13.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IUSA.L vs. UC13.L

Last updated Jun 5, 2026

IUSA.L (iShares S&P 500 UCITS Dist) and UC13.L (UBS Core S&P 500 UCITS ETF USD dis) are both S&P 500 funds tracking the S&P 500 Index, from iShares and UBS respectively. Both are passively managed. Over the past 10 years, IUSA.L returned 16.52%/yr vs 14.50%/yr for UC13.L. With a 0.98 correlation, they move nearly in lockstep. IUSA.L charges 0.07%/yr vs 0.03%/yr for UC13.L.

Performance

IUSA.L vs. UC13.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares S&P 500 UCITS Dist (IUSA.L) and UBS Core S&P 500 UCITS ETF USD dis (UC13.L). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, IUSA.L achieves a 10.67% return, which is significantly higher than UC13.L's 9.92% return. Over the past 10 years, IUSA.L has outperformed UC13.L with an annualized return of 16.52%, while UC13.L has yielded a comparatively lower 14.50% annualized return.

IUSA.L

1D
0.04%
1M
4.50%
YTD
10.67%
6M
10.05%
1Y
29.42%
3Y*
19.42%
5Y*
15.33%
10Y*
16.52%

UC13.L

1D
-0.02%
1M
4.54%
YTD
9.92%
6M
9.21%
1Y
27.71%
3Y*
17.70%
5Y*
13.62%
10Y*
14.50%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IUSA.L vs. UC13.L - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IUSA.L
iShares S&P 500 UCITS Dist		10.67%9.70%27.73%20.24%-8.72%31.54%14.15%27.06%0.51%11.19%
UC13.L
UBS Core S&P 500 UCITS ETF USD dis		9.92%8.39%25.77%18.14%-10.01%29.47%11.81%24.42%-1.52%8.98%

Correlation

The correlation between IUSA.L and UC13.L is 0.98 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.98

Correlation (3Y)
Calculated over the trailing 3-year period

0.98

Correlation (5Y)
Calculated over the trailing 5-year period

0.98

Correlation (10Y)
Calculated over the trailing 10-year period

0.98

Correlation (All Time)
Calculated using the full available price history since May 14, 2013

0.98

The correlation between IUSA.L and UC13.L has been stable across timeframes, ranging from 0.98 to 0.98 - a consistent structural relationship.

IUSA.L vs. UC13.L - Sectors Allocation Comparison

Sectors
IUSA.L
UC13.L

Technology

38.2%
37.9%

Financial Services

11.1%
11.3%

Communication Services

10.9%
10.9%

Consumer Cyclical

10.0%
9.8%

Healthcare

8.3%
8.3%

Industrials

7.9%
7.8%

Consumer Defensive

4.7%
4.8%

Energy

3.2%
3.4%

Utilities

2.2%
2.2%

Real Estate

1.9%
1.9%

Basic Materials

1.7%
1.7%

Technology

IUSA.L
38.2%
UC13.L
37.9%

Financial Services

IUSA.L
11.1%
UC13.L
11.3%

Communication Services

IUSA.L
10.9%
UC13.L
10.9%

Consumer Cyclical

IUSA.L
10.0%
UC13.L
9.8%

Healthcare

IUSA.L
8.3%
UC13.L
8.3%

Industrials

IUSA.L
7.9%
UC13.L
7.8%

Consumer Defensive

IUSA.L
4.7%
UC13.L
4.8%

Energy

IUSA.L
3.2%
UC13.L
3.4%

Utilities

IUSA.L
2.2%
UC13.L
2.2%

Real Estate

IUSA.L
1.9%
UC13.L
1.9%

Basic Materials

IUSA.L
1.7%
UC13.L
1.7%

Compare stocks, funds, or ETFs

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iShares S&P 500 UCITS Dist

UBS Core S&P 500 UCITS ETF USD dis

Often compared with IUSA.L:
IUSA.L vs. CSP1.LIUSA.L vs. VUAA.LIUSA.L vs. IAPD.ASIUSA.L vs. SPX5.LIUSA.L vs. SPXP.LIUSA.L vs. VOOIUSA.L vs. IVV
Often compared with UC13.L:
UC13.L vs. VUSA.LUC13.L vs. CSPX.LUC13.L vs. VOOUC13.L vs. SPXP.LUC13.L vs. SPYUC13.L vs. XDPG.LUC13.L vs. I500.L

Return for Risk

IUSA.L vs. UC13.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IUSA.L
IUSA.L Risk / Return Rank: 8484
Overall Rank
IUSA.L Sharpe Ratio Rank: 8686
Sharpe Ratio Rank
IUSA.L Sortino Ratio Rank: 8585
Sortino Ratio Rank
IUSA.L Omega Ratio Rank: 8686
Omega Ratio Rank
IUSA.L Calmar Ratio Rank: 8181
Calmar Ratio Rank
IUSA.L Martin Ratio Rank: 8080
Martin Ratio Rank
UC13.L
UC13.L Risk / Return Rank: 7777
Overall Rank
UC13.L Sharpe Ratio Rank: 8383
Sharpe Ratio Rank
UC13.L Sortino Ratio Rank: 8181
Sortino Ratio Rank
UC13.L Omega Ratio Rank: 8484
Omega Ratio Rank
UC13.L Calmar Ratio Rank: 7272
Calmar Ratio Rank
UC13.L Martin Ratio Rank: 6969
Martin Ratio Rank
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.

IUSA.L vs. UC13.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 UCITS Dist (IUSA.L) and UBS Core S&P 500 UCITS ETF USD dis (UC13.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.

IUSA.LUC13.LDifference
Sharpe ratioReturn per unit of total volatility
2.82
2.65

+0.17

Sortino ratioReturn per unit of downside risk
3.78
3.55

+0.23

Omega ratioGain probability vs. loss probability

1.53

1.50

+0.03

Calmar ratioReturn relative to maximum drawdown

4.20

3.54

+0.66

Martin ratioReturn relative to average drawdown

15.53

12.58

+2.95

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IUSA.L vs. UC13.L - Sharpe Ratio Comparison

The current IUSA.L Sharpe Ratio is 2.82, which is comparable to the UC13.L Sharpe Ratio of 2.65. The chart below compares the historical Sharpe Ratios of IUSA.L and UC13.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.

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Sharpe Ratios by Period

IUSA.LUC13.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.82

2.65

+0.17

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

1.07

0.94

+0.13

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

1.06

0.93

+0.13

Sharpe Ratio (All Time)

Calculated using the full available price history

0.58

0.89

-0.30

Drawdowns

IUSA.L vs. UC13.L - Drawdown Comparison

The maximum IUSA.L drawdown since its inception was -38.58%, which is greater than UC13.L's maximum drawdown of -25.59%. Use the drawdown chart below to compare losses from any high point for IUSA.L and UC13.L.

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Drawdown Indicators

IUSA.LUC13.LDifference

Max Drawdown

Largest peak-to-trough decline

-38.58%

-25.59%

-12.99%

Max Drawdown (1Y)

Largest decline over 1 year

-7.01%

-7.82%

+0.81%

Max Drawdown (3Y)

Largest decline over 3 years

-21.08%

-21.52%

+0.44%

Max Drawdown (5Y)

Largest decline over 5 years

-21.08%

-21.52%

+0.44%

Max Drawdown (10Y)

Largest decline over 10 years

-25.42%

-25.59%

+0.17%

Current Drawdown

Current decline from peak

-0.22%

-0.24%

+0.02%

Average Drawdown

Average peak-to-trough decline

-7.29%

-3.55%

-3.74%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.90%

2.21%

-0.31%

Volatility

IUSA.L vs. UC13.L - Volatility Comparison

iShares S&P 500 UCITS Dist (IUSA.L) and UBS Core S&P 500 UCITS ETF USD dis (UC13.L) have volatilities of 2.62% and 2.63%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

IUSA.LUC13.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.62%

2.63%

-0.01%

Volatility (6M)

Calculated over the trailing 6-month period

7.13%

7.11%

+0.02%

Volatility (1Y)

Calculated over the trailing 1-year period

10.44%

10.47%

-0.03%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

14.33%

14.45%

-0.12%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

15.60%

15.72%

-0.12%

IUSA.L vs. UC13.L - Expense Ratio Comparison

IUSA.L has a 0.07% expense ratio, which is higher than UC13.L's 0.03% 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

IUSA.L vs. UC13.L - Dividend Comparison

IUSA.L's dividend yield for the trailing twelve months is around 1.15%, more than UC13.L's 0.01% yield.

PositionTTM20252024202320222021202020192018201720162015
IUSA.L
iShares S&P 500 UCITS Dist		1.15%1.24%1.28%1.55%1.74%1.39%1.80%1.96%2.22%1.95%1.75%2.29%
UC13.L
UBS Core S&P 500 UCITS ETF USD dis		0.01%0.01%0.01%0.01%0.01%0.01%0.01%0.01%0.02%0.02%0.02%0.02%

Frequently Asked Questions

With a correlation of 0.98, IUSA.L and UC13.L move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

On fees, UC13.L is cheaper at 0.03% per year. The better choice depends on whether you care most about return, fees, risk, or income.

UC13.L is cheaper with a 0.03% expense ratio, compared with 0.07% for IUSA.L.

Both ETFs track S&P 500 Index. They also come from different issuers: iShares and UBS. Their fees differ too: 0.07% for IUSA.L and 0.03% for UC13.L.

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