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GSPX.L vs. ISAC.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

GSPX.L vs. ISAC.L

Last updated Jun 5, 2026

GSPX.L (iShares Core S&P 500 UCITS ETF) and ISAC.L (iShares MSCI ACWI UCITS ETF USD (Acc)) are both exchange-traded funds - GSPX.L is a S&P 500 fund tracking the S&P 500 Index, while ISAC.L is a Global Equities fund tracking the MSCI ACWI Index. Both are passively managed. Over the past 5 years, GSPX.L returned 12.56%/yr vs 12.59%/yr for ISAC.L. Their correlation of 0.81 suggests significant overlap in exposure. GSPX.L charges 0.10%/yr vs 0.20%/yr for ISAC.L.

Performance

GSPX.L vs. ISAC.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares Core S&P 500 UCITS ETF (GSPX.L) and iShares MSCI ACWI UCITS ETF USD (Acc) (ISAC.L). The values are adjusted to include any dividend payments, if applicable.

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Different Trading Currencies

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

Returns By Period

In the year-to-date period, GSPX.L achieves a 10.04% return, which is significantly lower than ISAC.L's 11.99% return.

GSPX.L

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

ISAC.L

1D
-0.10%
1M
5.22%
YTD
11.99%
6M
12.22%
1Y
30.05%
3Y*
18.15%
5Y*
12.59%
10Y*
13.47%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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

2026 (YTD)20252024202320222021202020192018
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%
ISAC.L
iShares MSCI ACWI UCITS ETF USD (Acc)		11.99%13.64%19.87%16.44%-8.43%19.97%12.26%20.98%-5.61%

Correlation

The correlation between GSPX.L and ISAC.L is 0.81, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

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

0.81

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

0.82

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

0.82

Correlation (All Time)
Calculated using the full available price history since Jul 4, 2018

0.81

The correlation between GSPX.L and ISAC.L has been stable across timeframes, ranging from 0.81 to 0.82 - a consistent structural relationship.

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

Sectors
GSPX.L
ISAC.L

Technology

38.6%
33.9%

Financial Services

11.3%
17.3%

Communication Services

10.6%
8.6%

Consumer Cyclical

9.6%
8.5%

Healthcare

8.2%
7.8%

Industrials

7.6%
9.0%

Consumer Defensive

4.6%
4.4%

Energy

3.3%
3.6%

Utilities

2.6%
2.2%

Basic Materials

1.7%
2.9%

Real Estate

1.7%
1.2%

Technology

GSPX.L
38.6%
ISAC.L
33.9%

Financial Services

GSPX.L
11.3%
ISAC.L
17.3%

Communication Services

GSPX.L
10.6%
ISAC.L
8.6%

Consumer Cyclical

GSPX.L
9.6%
ISAC.L
8.5%

Healthcare

GSPX.L
8.2%
ISAC.L
7.8%

Industrials

GSPX.L
7.6%
ISAC.L
9.0%

Consumer Defensive

GSPX.L
4.6%
ISAC.L
4.4%

Energy

GSPX.L
3.3%
ISAC.L
3.6%

Utilities

GSPX.L
2.6%
ISAC.L
2.2%

Basic Materials

GSPX.L
1.7%
ISAC.L
2.9%

Real Estate

GSPX.L
1.7%
ISAC.L
1.2%

Compare stocks, funds, or ETFs

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iShares Core S&P 500 UCITS ETF

iShares MSCI ACWI UCITS ETF USD (Acc)

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Often compared with ISAC.L:
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Return for Risk

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

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
GSPX.L
GSPX.L Risk / Return Rank: 7373
Overall Rank
GSPX.L Sharpe Ratio Rank: 7373
Sharpe Ratio Rank
GSPX.L Sortino Ratio Rank: 7777
Sortino Ratio Rank
GSPX.L Omega Ratio Rank: 7474
Omega Ratio Rank
GSPX.L Calmar Ratio Rank: 6565
Calmar Ratio Rank
GSPX.L Martin Ratio Rank: 7575
Martin Ratio Rank
ISAC.L
ISAC.L Risk / Return Rank: 7373
Overall Rank
ISAC.L Sharpe Ratio Rank: 7272
Sharpe Ratio Rank
ISAC.L Sortino Ratio Rank: 7777
Sortino Ratio Rank
ISAC.L Omega Ratio Rank: 7373
Omega Ratio Rank
ISAC.L Calmar Ratio Rank: 6767
Calmar Ratio Rank
ISAC.L Martin Ratio Rank: 7474
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.

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

This table presents a comparison of risk-adjusted performance metrics for iShares Core S&P 500 UCITS ETF (GSPX.L) and iShares MSCI ACWI UCITS ETF USD (Acc) (ISAC.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.

GSPX.LISAC.LDifference
Sharpe ratioReturn per unit of total volatility
2.34
2.52

-0.17

Sortino ratioReturn per unit of downside risk
3.39
3.47

-0.08

Omega ratioGain probability vs. loss probability

1.43

1.47

-0.05

Calmar ratioReturn relative to maximum drawdown

3.22

4.35

-1.14

Martin ratioReturn relative to average drawdown

14.09

16.70

-2.61

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

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

The current GSPX.L Sharpe Ratio is 2.34, which is comparable to the ISAC.L Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of GSPX.L and ISAC.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

GSPX.LISAC.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.34

2.52

-0.17

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.78

0.88

-0.10

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

—

0.87

—

Sharpe Ratio (All Time)

Calculated using the full available price history

0.78

0.86

-0.08

Drawdowns

GSPX.L vs. ISAC.L - Drawdown Comparison

The maximum GSPX.L drawdown since its inception was -34.88%, which is greater than ISAC.L's maximum drawdown of -25.84%. Use the drawdown chart below to compare losses from any high point for GSPX.L and ISAC.L.

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Drawdown Indicators

GSPX.LISAC.LDifference

Max Drawdown

Largest peak-to-trough decline

-34.88%

-25.84%

-9.04%

Max Drawdown (1Y)

Largest decline over 1 year

-8.43%

-6.88%

-1.55%

Max Drawdown (3Y)

Largest decline over 3 years

-18.91%

-18.33%

-0.58%

Max Drawdown (5Y)

Largest decline over 5 years

-25.77%

-18.33%

-7.44%

Max Drawdown (10Y)

Largest decline over 10 years

—

-25.84%

—

Current Drawdown

Current decline from peak

-0.52%

-0.36%

-0.16%

Average Drawdown

Average peak-to-trough decline

-5.61%

-3.56%

-2.05%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.93%

1.80%

+0.13%

Volatility

GSPX.L vs. ISAC.L - Volatility Comparison

The current volatility for iShares Core S&P 500 UCITS ETF (GSPX.L) is 3.17%, while iShares MSCI ACWI UCITS ETF USD (Acc) (ISAC.L) has a volatility of 3.70%. This indicates that GSPX.L experiences smaller price fluctuations and is considered to be less risky than ISAC.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

GSPX.LISAC.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.17%

3.70%

-0.53%

Volatility (6M)

Calculated over the trailing 6-month period

8.48%

9.23%

-0.75%

Volatility (1Y)

Calculated over the trailing 1-year period

11.57%

11.88%

-0.31%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

16.05%

14.28%

+1.77%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

17.63%

15.48%

+2.15%

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

GSPX.L has a 0.10% expense ratio, which is lower than ISAC.L's 0.20% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

GSPX.L vs. ISAC.L - Dividend Comparison

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

PositionTTM20252024202320222021202020192018
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%
ISAC.L
iShares MSCI ACWI UCITS ETF USD (Acc)		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%

Frequently Asked Questions

GSPX.L and ISAC.L have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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.

GSPX.L is cheaper with a 0.10% expense ratio, compared with 0.20% for ISAC.L.

GSPX.L is categorized as S&P 500, while ISAC.L is Global Equities. GSPX.L tracks S&P 500 Index, while ISAC.L tracks MSCI ACWI Index. Their fees differ too: 0.10% for GSPX.L and 0.20% for ISAC.L.

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