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

ISAC.L vs. WSML.L

Last updated Jun 5, 2026

ISAC.L (iShares MSCI ACWI UCITS ETF USD (Acc)) and WSML.L (iShares MSCI World Small Cap UCITS ETF USD (Acc)) are both Global Equities funds from iShares - ISAC.L tracks the MSCI ACWI Index while WSML.L tracks the MSCI World Small Cap Index. Both are passively managed. Over the past 5 years, ISAC.L returned 11.38%/yr vs 7.07%/yr for WSML.L. Their correlation of 0.89 suggests significant overlap in exposure. ISAC.L charges 0.20%/yr vs 0.35%/yr for WSML.L.

Performance

ISAC.L vs. WSML.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares MSCI ACWI UCITS ETF USD (Acc) (ISAC.L) and iShares MSCI World Small Cap UCITS ETF USD (Acc) (WSML.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, ISAC.L achieves a 11.54% return, which is significantly lower than WSML.L's 14.39% return.

ISAC.L

1D
-0.10%
1M
4.26%
YTD
11.54%
6M
13.01%
1Y
28.81%
3Y*
21.19%
5Y*
11.38%
10Y*
12.63%

WSML.L

1D
0.54%
1M
3.24%
YTD
14.39%
6M
15.51%
1Y
32.35%
3Y*
18.08%
5Y*
7.07%
10Y*
—
*Multi-year figures are annualized to reflect compound growth (CAGR)

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

2026 (YTD)20252024202320222021202020192018
ISAC.L
iShares MSCI ACWI UCITS ETF USD (Acc)		11.54%22.36%17.81%22.57%-18.16%18.85%15.66%25.77%-8.28%
WSML.L
iShares MSCI World Small Cap UCITS ETF USD (Acc)		14.39%19.94%7.40%17.06%-18.62%15.23%16.50%24.35%-12.64%

Correlation

The correlation between ISAC.L and WSML.L is 0.88, 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

0.88

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

0.86

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

0.89

Correlation (All Time)
Calculated using the full available price history since Apr 3, 2018

0.89

The correlation between ISAC.L and WSML.L has been stable across timeframes, ranging from 0.86 to 0.89 - a consistent structural relationship.

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

Sectors
ISAC.L
WSML.L

Technology

33.9%
13.5%

Financial Services

17.3%
13.5%

Industrials

9.0%
20.5%

Communication Services

8.6%
3.0%

Consumer Cyclical

8.5%
10.9%

Healthcare

7.8%
9.6%

Consumer Defensive

4.4%
4.1%

Energy

3.6%
5.5%

Basic Materials

2.9%
8.2%

Utilities

2.2%
2.9%

Real Estate

1.2%
8.2%

Technology

ISAC.L
33.9%
WSML.L
13.5%

Financial Services

ISAC.L
17.3%
WSML.L
13.5%

Industrials

ISAC.L
9.0%
WSML.L
20.5%

Communication Services

ISAC.L
8.6%
WSML.L
3.0%

Consumer Cyclical

ISAC.L
8.5%
WSML.L
10.9%

Healthcare

ISAC.L
7.8%
WSML.L
9.6%

Consumer Defensive

ISAC.L
4.4%
WSML.L
4.1%

Energy

ISAC.L
3.6%
WSML.L
5.5%

Basic Materials

ISAC.L
2.9%
WSML.L
8.2%

Utilities

ISAC.L
2.2%
WSML.L
2.9%

Real Estate

ISAC.L
1.2%
WSML.L
8.2%

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iShares MSCI ACWI UCITS ETF USD (Acc)

iShares MSCI World Small Cap UCITS ETF USD (Acc)

Often compared with ISAC.L:
ISAC.L vs. VWRA.LISAC.L vs. SSAC.LISAC.L vs. IWDA.LISAC.L vs. VTISAC.L vs. SWDA.LISAC.L vs. VOOISAC.L vs. SWRD.L
Often compared with WSML.L:
WSML.L vs. CSPX.LWSML.L vs. EIMI.LWSML.L vs. AVSG.LWSML.L vs. IWDA.ASWSML.L vs. VWRA.LWSML.L vs. VBRWSML.L vs. R2SC.L

Return for Risk

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

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
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
WSML.L
WSML.L Risk / Return Rank: 7070
Overall Rank
WSML.L Sharpe Ratio Rank: 6767
Sharpe Ratio Rank
WSML.L Sortino Ratio Rank: 7474
Sortino Ratio Rank
WSML.L Omega Ratio Rank: 6464
Omega Ratio Rank
WSML.L Calmar Ratio Rank: 7272
Calmar Ratio Rank
WSML.L Martin Ratio Rank: 7070
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.

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

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI ACWI UCITS ETF USD (Acc) (ISAC.L) and iShares MSCI World Small Cap UCITS ETF USD (Acc) (WSML.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.

ISAC.LWSML.LDifference
Sharpe ratioReturn per unit of total volatility
2.31
2.19

+0.13

Sortino ratioReturn per unit of downside risk
3.42
3.28

+0.14

Omega ratioGain probability vs. loss probability

1.43

1.38

+0.04

Calmar ratioReturn relative to maximum drawdown

3.27

3.56

-0.29

Martin ratioReturn relative to average drawdown

13.72

12.99

+0.73

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

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

The current ISAC.L Sharpe Ratio is 2.31, which is comparable to the WSML.L Sharpe Ratio of 2.19. The chart below compares the historical Sharpe Ratios of ISAC.L and WSML.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

ISAC.LWSML.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.31

2.19

+0.13

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.73

0.38

+0.35

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.79

—

—

Sharpe Ratio (All Time)

Calculated using the full available price history

0.75

0.47

+0.28

Drawdowns

ISAC.L vs. WSML.L - Drawdown Comparison

The maximum ISAC.L drawdown since its inception was -33.82%, smaller than the maximum WSML.L drawdown of -41.14%. Use the drawdown chart below to compare losses from any high point for ISAC.L and WSML.L.

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Drawdown Indicators

ISAC.LWSML.LDifference

Max Drawdown

Largest peak-to-trough decline

-33.82%

-41.14%

+7.32%

Max Drawdown (1Y)

Largest decline over 1 year

-8.77%

-9.03%

+0.26%

Max Drawdown (3Y)

Largest decline over 3 years

-16.56%

-20.10%

+3.54%

Max Drawdown (5Y)

Largest decline over 5 years

-26.07%

-30.50%

+4.43%

Max Drawdown (10Y)

Largest decline over 10 years

-33.82%

—

—

Current Drawdown

Current decline from peak

-0.72%

0.00%

-0.72%

Average Drawdown

Average peak-to-trough decline

-4.69%

-8.80%

+4.11%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.10%

2.48%

-0.38%

Volatility

ISAC.L vs. WSML.L - Volatility Comparison

The current volatility for iShares MSCI ACWI UCITS ETF USD (Acc) (ISAC.L) is 3.84%, while iShares MSCI World Small Cap UCITS ETF USD (Acc) (WSML.L) has a volatility of 4.43%. This indicates that ISAC.L experiences smaller price fluctuations and is considered to be less risky than WSML.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

ISAC.LWSML.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.84%

4.43%

-0.59%

Volatility (6M)

Calculated over the trailing 6-month period

9.77%

11.23%

-1.46%

Volatility (1Y)

Calculated over the trailing 1-year period

12.40%

14.74%

-2.34%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

15.57%

18.48%

-2.91%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

15.95%

19.60%

-3.65%

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

ISAC.L has a 0.20% expense ratio, which is lower than WSML.L's 0.35% expense ratio.

Dividends

ISAC.L vs. WSML.L - Dividend Comparison

Neither ISAC.L nor WSML.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

ISAC.L and WSML.L have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

On fees, ISAC.L is cheaper at 0.20% per year. The better choice depends on whether you care most about return, fees, risk, or income.

ISAC.L is cheaper with a 0.20% expense ratio, compared with 0.35% for WSML.L.

ISAC.L tracks MSCI ACWI Index, while WSML.L tracks MSCI World Small Cap Index. Their fees differ too: 0.20% for ISAC.L and 0.35% for WSML.L.

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