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IWFM.L vs. VOO
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IWFM.L vs. VOO

Last updated Jun 11, 2026

IWFM.L (iShares Edge MSCI World Momentum Factor UCITS ETF (Acc)) and VOO (Vanguard S&P 500 ETF) are both exchange-traded funds - IWFM.L is a Momentum fund tracking the MSCI World Momentum Index, while VOO is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, IWFM.L returned 15.80%/yr vs 16.06%/yr for VOO. A 0.56 correlation means they provide meaningful diversification when combined. IWFM.L charges 0.25%/yr vs 0.03%/yr for VOO.

Performance

IWFM.L vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares Edge MSCI World Momentum Factor UCITS ETF (Acc) (IWFM.L) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

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Different Trading Currencies

IWFM.L is traded in GBp, while VOO is traded in USD. To make them comparable, the VOO values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, IWFM.L achieves a 16.58% return, which is significantly higher than VOO's 9.19% return. Both investments have delivered pretty close results over the past 10 years, with IWFM.L having a 15.80% annualized return and VOO not far ahead at 16.06%.

IWFM.L

1D
-0.56%
1M
0.32%
YTD
16.58%
6M
15.41%
1Y
30.48%
3Y*
24.82%
5Y*
13.69%
10Y*
15.80%

VOO

1D
0.00%
1M
1.44%
YTD
9.19%
6M
7.88%
1Y
24.86%
3Y*
18.86%
5Y*
14.51%
10Y*
16.06%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IWFM.L vs. VOO - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IWFM.L
iShares Edge MSCI World Momentum Factor UCITS ETF (Acc)		16.58%12.72%32.62%5.85%-8.21%15.58%24.16%23.25%1.62%20.40%
VOO
Vanguard S&P 500 ETF		7.37%9.43%27.16%20.01%-8.44%30.01%14.85%26.37%1.16%11.24%

Correlation

The correlation between IWFM.L and VOO is 0.56, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

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

0.56

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

0.54

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

0.49

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

0.54

Correlation (All Time)
Calculated using the full available price history since Oct 6, 2014

0.56

The correlation between IWFM.L and VOO has been stable across timeframes, ranging from 0.49 to 0.56 - a consistent structural relationship.

IWFM.L vs. VOO - Sectors Allocation Comparison

Sectors
IWFM.L
VOO

Technology

26.0%
35.7%

Industrials

18.7%
8.3%

Financial Services

13.1%
11.6%

Healthcare

10.7%
8.5%

Energy

10.6%
3.5%

Communication Services

6.8%
11.3%

Basic Materials

6.0%
1.8%

Utilities

3.7%
2.4%

Consumer Cyclical

1.6%
10.2%

Consumer Defensive

1.5%
4.9%

Real Estate

1.4%
1.9%

Technology

IWFM.L
26.0%
VOO
35.7%

Industrials

IWFM.L
18.7%
VOO
8.3%

Financial Services

IWFM.L
13.1%
VOO
11.6%

Healthcare

IWFM.L
10.7%
VOO
8.5%

Energy

IWFM.L
10.6%
VOO
3.5%

Communication Services

IWFM.L
6.8%
VOO
11.3%

Basic Materials

IWFM.L
6.0%
VOO
1.8%

Utilities

IWFM.L
3.7%
VOO
2.4%

Consumer Cyclical

IWFM.L
1.6%
VOO
10.2%

Consumer Defensive

IWFM.L
1.5%
VOO
4.9%

Real Estate

IWFM.L
1.4%
VOO
1.9%

Compare stocks, funds, or ETFs

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iShares Edge MSCI World Momentum Factor UCITS ETF (Acc)

Vanguard S&P 500 ETF

Often compared with IWFM.L:
IWFM.L vs. SPMOIWFM.L vs. XDEM.DEIWFM.L vs. IMTMIWFM.L vs. IUMF.LIWFM.L vs. JPGL.LIWFM.L vs. SPYIWFM.L vs. ACWI
Often compared with VOO:
VOO vs. VTIVOO vs. QQQVOO vs. SCHDVOO vs. VTVOO vs. SPYVOO vs. FXAIXVOO vs. IVV

Return for Risk

IWFM.L vs. VOO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IWFM.L
IWFM.L Risk / Return Rank: 7272
Overall Rank
IWFM.L Sharpe Ratio Rank: 6666
Sharpe Ratio Rank
IWFM.L Sortino Ratio Rank: 7070
Sortino Ratio Rank
IWFM.L Omega Ratio Rank: 6666
Omega Ratio Rank
IWFM.L Calmar Ratio Rank: 7777
Calmar Ratio Rank
IWFM.L Martin Ratio Rank: 7979
Martin Ratio Rank
VOO
VOO Risk / Return Rank: 6262
Overall Rank
VOO Sharpe Ratio Rank: 6363
Sharpe Ratio Rank
VOO Sortino Ratio Rank: 6060
Sortino Ratio Rank
VOO Omega Ratio Rank: 6262
Omega Ratio Rank
VOO Calmar Ratio Rank: 5757
Calmar Ratio Rank
VOO 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.

IWFM.L vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Edge MSCI World Momentum Factor UCITS ETF (Acc) (IWFM.L) and Vanguard S&P 500 ETF (VOO). 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.

IWFM.LVOODifference
Sharpe ratioReturn per unit of total volatility
1.84
2.17

-0.33

Sortino ratioReturn per unit of downside risk
2.70
2.81

-0.11

Omega ratioGain probability vs. loss probability

1.34

1.41

-0.07

Calmar ratioReturn relative to maximum drawdown

3.39

3.26

+0.13

Martin ratioReturn relative to average drawdown

12.95

12.41

+0.54

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

IWFM.L vs. VOO - Sharpe Ratio Comparison

The current IWFM.L Sharpe Ratio is 1.84, which is comparable to the VOO Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of IWFM.L and VOO, 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

IWFM.LVOODifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.84

2.17

-0.33

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.63

0.92

-0.29

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.80

0.89

-0.09

Sharpe Ratio (All Time)

Calculated using the full available price history

0.49

0.93

-0.44

Drawdowns

IWFM.L vs. VOO - Drawdown Comparison

The maximum IWFM.L drawdown since its inception was -41.86%, which is greater than VOO's maximum drawdown of -26.09%. Use the drawdown chart below to compare losses from any high point for IWFM.L and VOO.

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Drawdown Indicators

IWFM.LVOODifference

Max Drawdown

Largest peak-to-trough decline

-41.86%

-26.09%

-15.77%

Max Drawdown (1Y)

Largest decline over 1 year

-8.95%

-7.66%

-1.29%

Max Drawdown (3Y)

Largest decline over 3 years

-21.15%

-21.93%

+0.78%

Max Drawdown (5Y)

Largest decline over 5 years

-21.15%

-21.93%

+0.78%

Max Drawdown (10Y)

Largest decline over 10 years

-22.58%

-26.09%

+3.51%

Current Drawdown

Current decline from peak

-5.36%

-2.30%

-3.06%

Average Drawdown

Average peak-to-trough decline

-9.42%

-3.29%

-6.13%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.35%

2.01%

+0.34%

Volatility

IWFM.L vs. VOO - Volatility Comparison

iShares Edge MSCI World Momentum Factor UCITS ETF (Acc) (IWFM.L) has a higher volatility of 6.37% compared to Vanguard S&P 500 ETF (VOO) at 3.34%. This indicates that IWFM.L's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

IWFM.LVOODifference

Volatility (1M)

Calculated over the trailing 1-month period

6.37%

3.34%

+3.03%

Volatility (6M)

Calculated over the trailing 6-month period

14.15%

8.38%

+5.77%

Volatility (1Y)

Calculated over the trailing 1-year period

16.54%

11.55%

+4.99%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

21.59%

15.79%

+5.80%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

19.60%

18.11%

+1.49%

IWFM.L vs. VOO - Expense Ratio Comparison

IWFM.L has a 0.25% expense ratio, which is higher than VOO'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

IWFM.L vs. VOO - Dividend Comparison

IWFM.L has not paid dividends to shareholders, while VOO's dividend yield for the trailing twelve months is around 1.07%.

PositionTTM20252024202320222021202020192018201720162015
IWFM.L
iShares Edge MSCI World Momentum Factor UCITS ETF (Acc)		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
VOO
Vanguard S&P 500 ETF		1.07%1.13%1.24%1.46%1.69%1.25%1.54%1.88%2.06%1.78%2.02%2.10%

Frequently Asked Questions

IWFM.L and VOO have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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

VOO is cheaper with a 0.03% expense ratio, compared with 0.25% for IWFM.L.

IWFM.L is categorized as Momentum, while VOO is S&P 500. IWFM.L tracks MSCI World Momentum Index, while VOO tracks S&P 500 Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.25% for IWFM.L and 0.03% for VOO.

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