IDFN.L vs. WDEF.L

Last updated Jun 3, 2026

IDFN.L (Invesco Defence Innovation UCITS ETF Acc) and WDEF.L (WisdomTree Europe Defence UCITS ETF - EUR Acc EUR) are both Aerospace & Defense funds - IDFN.L tracks the S&P Kensho Global Future Defense Index while WDEF.L tracks the WisdomTree Europe Defence UCITS Index. Both are passively managed. Over the past year, IDFN.L returned 81.92% vs -0.82% for WDEF.L. At a 0.49 correlation, their price movements are largely independent. IDFN.L charges 0.35%/yr vs 0.40%/yr for WDEF.L.

Performance

IDFN.L vs. WDEF.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco Defence Innovation UCITS ETF Acc (IDFN.L) and WisdomTree Europe Defence UCITS ETF - EUR Acc EUR (WDEF.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

IDFN.L is traded in USD, while WDEF.L is traded in EUR. To make them comparable, the WDEF.L values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, IDFN.L achieves a 37.08% return, which is significantly higher than WDEF.L's 1.04% return.

IDFN.L

• 1D: 0.90%
• 1M: 14.54%
• YTD: 37.08%
• 6M: 47.19%
• 1Y: 81.92%
• 3Y*: —
• 5Y*: —
• 10Y*: —

WDEF.L

• 1D: -0.82%
• 1M: -3.02%
• YTD: 1.04%
• 6M: 8.27%
• 1Y: -0.82%
• 3Y*: 13.47%
• 5Y*: 4.63%
• 10Y*: —

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

IDFN.L vs. WDEF.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024
IDFN.L Invesco Defence Innovation UCITS ETF Acc	37.08%	55.93%	6.12%
WDEF.L WisdomTree Europe Defence UCITS ETF - EUR Acc EUR	1.04%	42.47%	-7.43%

Correlation

The correlation between IDFN.L and WDEF.L is 0.54, 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	0.54
Correlation (All Time) Calculated using the full available price history since Oct 30, 2024	0.49

The correlation between IDFN.L and WDEF.L has been stable across timeframes, ranging from 0.49 to 0.54 - a consistent structural relationship.

Return for Risk

IDFN.L vs. WDEF.L — Risk / Return Rank

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

IDFN.L

IDFN.L Risk / Return Rank: 86
IDFN.L Sharpe Ratio Rank: 90
IDFN.L Sortino Ratio Rank: 87
IDFN.L Omega Ratio Rank: 79
IDFN.L Calmar Ratio Rank: 91
IDFN.L Martin Ratio Rank: 83

WDEF.L

WDEF.L Risk / Return Rank: 10
WDEF.L Sharpe Ratio Rank: 8
WDEF.L Sortino Ratio Rank: 13
WDEF.L Omega Ratio Rank: 15
WDEF.L Calmar Ratio Rank: 8
WDEF.L Martin Ratio Rank: 7

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.

IDFN.L vs. WDEF.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco Defence Innovation UCITS ETF Acc (IDFN.L) and WisdomTree Europe Defence UCITS ETF - EUR Acc EUR (WDEF.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.

	IDFN.L	WDEF.L	Difference
Sharpe ratio Return per unit of total volatility	3.15	-0.01	+3.16
Sortino ratio Return per unit of downside risk	4.02	0.58	+3.45
Omega ratio Gain probability vs. loss probability	1.48	1.10	+0.38
Calmar ratio Return relative to maximum drawdown	5.92	-0.02	+5.94
Martin ratio Return relative to average drawdown	17.35	-0.05	+17.40
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IDFN.L vs. WDEF.L - Sharpe Ratio Comparison

The current IDFN.L Sharpe Ratio is 3.15, which is higher than the WDEF.L Sharpe Ratio of -0.01. The chart below compares the historical Sharpe Ratios of IDFN.L and WDEF.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.

Sharpe Ratios by Period

	IDFN.L	WDEF.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.15	-0.01	+3.16
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.13	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.52	0.34	+2.17

Drawdowns

IDFN.L vs. WDEF.L - Drawdown Comparison

The maximum IDFN.L drawdown since its inception was -13.71%, smaller than the maximum WDEF.L drawdown of -41.69%. Use the drawdown chart below to compare losses from any high point for IDFN.L and WDEF.L.

Drawdown Indicators

	IDFN.L	WDEF.L	Difference
Max Drawdown Largest peak-to-trough decline	-13.71%	-41.69%	+27.98%
Max Drawdown (1Y) Largest decline over 1 year	-13.39%	-26.82%	+13.43%
Max Drawdown (3Y) Largest decline over 3 years	—	-26.82%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-41.69%	—
Current Drawdown Current decline from peak	-3.22%	-15.01%	+11.79%
Average Drawdown Average peak-to-trough decline	-2.99%	-11.68%	+8.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.57%	9.54%	-4.97%

Volatility

IDFN.L vs. WDEF.L - Volatility Comparison

The current volatility for Invesco Defence Innovation UCITS ETF Acc (IDFN.L) is 9.94%, while WisdomTree Europe Defence UCITS ETF - EUR Acc EUR (WDEF.L) has a volatility of 11.39%. This indicates that IDFN.L experiences smaller price fluctuations and is considered to be less risky than WDEF.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDFN.L	WDEF.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.94%	11.39%	-1.45%
Volatility (6M) Calculated over the trailing 6-month period	20.97%	65.06%	-44.09%
Volatility (1Y) Calculated over the trailing 1-year period	25.86%	74.50%	-48.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.87%	44.74%	-17.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.87%	43.60%	-16.73%

IDFN.L vs. WDEF.L - Expense Ratio Comparison

IDFN.L has a 0.35% expense ratio, which is lower than WDEF.L's 0.40% expense ratio.

Dividends

IDFN.L vs. WDEF.L - Dividend Comparison

Neither IDFN.L nor WDEF.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both IDFN.L and WDEF.L in my portfolio?

IDFN.L and WDEF.L have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IDFN.L or WDEF.L?

On fees, IDFN.L is cheaper at 0.35% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IDFN.L or WDEF.L?

IDFN.L is cheaper with a 0.35% expense ratio, compared with 0.40% for WDEF.L.

What is the main difference between IDFN.L and WDEF.L?

IDFN.L tracks S&P Kensho Global Future Defense Index, while WDEF.L tracks WisdomTree Europe Defence UCITS Index. They also come from different issuers: Invesco and WisdomTree. Their fees differ too: 0.35% for IDFN.L and 0.40% for WDEF.L.