SSAC.L vs. WLDS.L

Last updated Jun 14, 2026

SSAC.L (iShares MSCI ACWI UCITS ETF (Acc)) and WLDS.L (iShares MSCI World Small Cap UCITS ETF) are both exchange-traded funds - SSAC.L is a Global Equities fund tracking the MSCI ACWI Index, while WLDS.L is a Small Cap Blend Equities fund tracking the MSCI World Small Cap Inde. Both are passively managed. Over the past 5 years, SSAC.L returned 12.18%/yr vs 8.13%/yr for WLDS.L. Their correlation of 0.85 suggests significant overlap in exposure. SSAC.L charges 0.20%/yr vs 0.35%/yr for WLDS.L.

Performance

SSAC.L vs. WLDS.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares MSCI ACWI UCITS ETF (Acc) (SSAC.L) and iShares MSCI World Small Cap UCITS ETF (WLDS.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, SSAC.L achieves a 10.60% return, which is significantly lower than WLDS.L's 15.41% return.

SSAC.L

• 1D: 1.72%
• 1M: 0.47%
• YTD: 10.60%
• 6M: 11.34%
• 1Y: 28.26%
• 3Y*: 17.41%
• 5Y*: 12.18%
• 10Y*: 13.49%

WLDS.L

• 1D: 2.23%
• 1M: 3.04%
• YTD: 15.41%
• 6M: 14.39%
• 1Y: 34.08%
• 3Y*: 14.50%
• 5Y*: 8.13%
• 10Y*: —

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

SSAC.L vs. WLDS.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
SSAC.L iShares MSCI ACWI UCITS ETF (Acc)	10.60%	13.95%	19.63%	16.14%	-8.56%	20.35%	11.80%	22.09%	3.00%
WLDS.L iShares MSCI World Small Cap UCITS ETF	15.41%	11.75%	8.63%	11.26%	-8.89%	16.71%	12.54%	20.41%	-31.05%

Correlation

The correlation between SSAC.L and WLDS.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	0.80
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (All Time) Calculated using the full available price history since Mar 27, 2018	0.85

The correlation between SSAC.L and WLDS.L has been stable across timeframes, ranging from 0.80 to 0.85 - a consistent structural relationship.

SSAC.L vs. WLDS.L - Sectors Allocation Comparison

Sectors	SSAC.L	WLDS.L
Technology	33.7%	16.0%
Financial Services	15.3%	13.2%
Industrials	10.3%	19.7%
Consumer Cyclical	8.8%	10.6%
Communication Services	8.3%	3.2%
Healthcare	7.6%	10.0%
Consumer Defensive	4.5%	3.8%
Energy	3.9%	4.8%
Basic Materials	3.7%	8.0%
Utilities	2.4%	2.7%
Real Estate	1.6%	8.0%

Return for Risk

SSAC.L vs. WLDS.L — Risk / Return Rank

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

SSAC.L

SSAC.L Risk / Return Rank: 87
SSAC.L Sharpe Ratio Rank: 88
SSAC.L Sortino Ratio Rank: 88
SSAC.L Omega Ratio Rank: 88
SSAC.L Calmar Ratio Rank: 83
SSAC.L Martin Ratio Rank: 86

WLDS.L

WLDS.L Risk / Return Rank: 87
WLDS.L Sharpe Ratio Rank: 89
WLDS.L Sortino Ratio Rank: 90
WLDS.L Omega Ratio Rank: 86
WLDS.L Calmar Ratio Rank: 86
WLDS.L Martin Ratio Rank: 86

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.

SSAC.L vs. WLDS.L - Risk-Adjusted Trends Comparison

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

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	SSAC.L	WLDS.L	Difference
Sharpe ratio: Return per unit of total volatility	2.54	2.58	-0.04
Sortino ratio: Return per unit of downside risk	3.50	3.66	-0.15
Omega ratio: Gain probability vs. loss probability	1.48	1.46	+0.02
Calmar ratio: Return relative to maximum drawdown	3.90	4.23	-0.33
Martin ratio: Return relative to average drawdown	15.39	15.95	-0.56

SSAC.L vs. WLDS.L - Sharpe Ratio Comparison

The current SSAC.L Sharpe Ratio is 2.54, which is comparable to the WLDS.L Sharpe Ratio of 2.58. The chart below compares the historical Sharpe Ratios of SSAC.L and WLDS.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.

Drawdowns

SSAC.L vs. WLDS.L - Drawdown Comparison

The maximum SSAC.L drawdown since its inception was -43.12%, roughly equal to the maximum WLDS.L drawdown of -43.18%. Use the drawdown chart below to compare losses from any high point for SSAC.L and WLDS.L.

Drawdown Indicators

	SSAC.L	WLDS.L	Difference
Max Drawdown Largest peak-to-trough decline	-43.12%	-43.18%	+0.06%
Max Drawdown (1Y) Largest decline over 1 year	-7.01%	-7.86%	+0.85%
Max Drawdown (3Y) Largest decline over 3 years	-20.01%	-21.53%	+1.52%
Max Drawdown (5Y) Largest decline over 5 years	-20.01%	-21.53%	+1.52%
Max Drawdown (10Y) Largest decline over 10 years	-25.43%	—	—
Current Drawdown Current decline from peak	-1.51%	0.00%	-1.51%
Average Drawdown Average peak-to-trough decline	-9.20%	-12.28%	+3.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.78%	2.09%	-0.31%

Volatility

SSAC.L vs. WLDS.L - Volatility Comparison

The current volatility for iShares MSCI ACWI UCITS ETF (Acc) (SSAC.L) is 3.56%, while iShares MSCI World Small Cap UCITS ETF (WLDS.L) has a volatility of 4.13%. This indicates that SSAC.L experiences smaller price fluctuations and is considered to be less risky than WLDS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSAC.L	WLDS.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.56%	4.13%	-0.57%
Volatility (6M) Calculated over the trailing 6-month period	8.12%	9.74%	-1.62%
Volatility (1Y) Calculated over the trailing 1-year period	10.80%	12.93%	-2.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.93%	20.30%	-1.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.28%	22.45%	-5.17%

SSAC.L vs. WLDS.L - Expense Ratio Comparison

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

Dividends

SSAC.L vs. WLDS.L - Dividend Comparison

Neither SSAC.L nor WLDS.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both SSAC.L and WLDS.L in my portfolio?

SSAC.L and WLDS.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.

Which ETF is better, SSAC.L or WLDS.L?

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

Which ETF is cheaper, SSAC.L or WLDS.L?

SSAC.L is cheaper with a 0.20% expense ratio, compared with 0.35% for WLDS.L.

What is the main difference between SSAC.L and WLDS.L?

SSAC.L is categorized as Global Equities, while WLDS.L is Small Cap Blend Equities. SSAC.L tracks MSCI ACWI Index, while WLDS.L tracks MSCI World Small Cap Inde. Their fees differ too: 0.20% for SSAC.L and 0.35% for WLDS.L.