WFMIX vs. IDMO

Last updated Jun 13, 2026

WFMIX (Allspring Special Mid Cap Value Fund Class I) and IDMO (Invesco S&P International Developed Momentum ETF) are both funds - WFMIX is a Mid Cap Value Equities fund managed by Allspring Global Investments, while IDMO is a Momentum fund tracking the S&P Momentum Developed ex U.S. & South Korea LargeMidCap Index. Over the past 10 years, WFMIX returned 10.85%/yr vs 12.64%/yr for IDMO. At a 0.48 correlation, their price movements are largely independent. WFMIX charges 0.80%/yr vs 0.25%/yr for IDMO.

Performance

WFMIX vs. IDMO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Allspring Special Mid Cap Value Fund Class I (WFMIX) and Invesco S&P International Developed Momentum ETF (IDMO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WFMIX achieves a 10.59% return, which is significantly higher than IDMO's 8.17% return. Over the past 10 years, WFMIX has underperformed IDMO with an annualized return of 10.85%, while IDMO has yielded a comparatively higher 12.64% annualized return.

WFMIX

• 1D: 1.45%
• 1M: 3.68%
• YTD: 10.59%
• 6M: 9.07%
• 1Y: 16.75%
• 3Y*: 12.04%
• 5Y*: 7.84%
• 10Y*: 10.85%

IDMO

• 1D: 1.36%
• 1M: -1.92%
• YTD: 8.17%
• 6M: 10.09%
• 1Y: 23.12%
• 3Y*: 25.21%
• 5Y*: 15.50%
• 10Y*: 12.64%

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

WFMIX vs. IDMO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WFMIX Allspring Special Mid Cap Value Fund Class I	10.59%	6.14%	11.95%	9.54%	-4.65%	28.53%	3.27%	40.27%	-13.12%	11.16%
IDMO Invesco S&P International Developed Momentum ETF	8.17%	42.17%	12.79%	20.16%	-12.03%	14.31%	22.01%	26.09%	-16.66%	29.21%

Correlation

The correlation between WFMIX and IDMO is 0.57, 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	0.57
Correlation (3Y) Calculated over the trailing 3-year period	0.60
Correlation (5Y) Calculated over the trailing 5-year period	0.67
Correlation (10Y) Calculated over the trailing 10-year period	0.54
Correlation (All Time) Calculated using the full available price history since Feb 24, 2012	0.48

The correlation between WFMIX and IDMO shifts across timeframes, from 0.48 (all time) to 0.67 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

WFMIX vs. IDMO — Risk / Return Rank

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

WFMIX

WFMIX Risk / Return Rank: 30
WFMIX Sharpe Ratio Rank: 29
WFMIX Sortino Ratio Rank: 31
WFMIX Omega Ratio Rank: 27
WFMIX Calmar Ratio Rank: 34
WFMIX Martin Ratio Rank: 31

IDMO

IDMO Risk / Return Rank: 44
IDMO Sharpe Ratio Rank: 42
IDMO Sortino Ratio Rank: 43
IDMO Omega Ratio Rank: 42
IDMO Calmar Ratio Rank: 43
IDMO Martin Ratio Rank: 51

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.

WFMIX vs. IDMO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Allspring Special Mid Cap Value Fund Class I (WFMIX) and Invesco S&P International Developed Momentum ETF (IDMO). 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.

	WFMIX	IDMO	Difference
Sharpe ratio: Return per unit of total volatility	1.23	1.30	-0.07
Sortino ratio: Return per unit of downside risk	1.86	1.93	-0.07
Omega ratio: Gain probability vs. loss probability	1.22	1.24	-0.03
Calmar ratio: Return relative to maximum drawdown	1.80	1.89	-0.09
Martin ratio: Return relative to average drawdown	5.91	7.64	-1.73

WFMIX vs. IDMO - Sharpe Ratio Comparison

The current WFMIX Sharpe Ratio is 1.23, which is comparable to the IDMO Sharpe Ratio of 1.30. The chart below compares the historical Sharpe Ratios of WFMIX and IDMO, 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

WFMIX vs. IDMO - Drawdown Comparison

The maximum WFMIX drawdown since its inception was -52.70%, which is greater than IDMO's maximum drawdown of -39.38%. Use the drawdown chart below to compare losses from any high point for WFMIX and IDMO.

Drawdown Indicators

	WFMIX	IDMO	Difference
Max Drawdown Largest peak-to-trough decline	-52.70%	-39.38%	-13.32%
Max Drawdown (1Y) Largest decline over 1 year	-9.66%	-12.31%	+2.65%
Max Drawdown (3Y) Largest decline over 3 years	-18.30%	-12.65%	-5.65%
Max Drawdown (5Y) Largest decline over 5 years	-22.13%	-27.07%	+4.94%
Max Drawdown (10Y) Largest decline over 10 years	-43.80%	-31.34%	-12.46%
Current Drawdown Current decline from peak	-0.40%	-1.92%	+1.52%
Average Drawdown Average peak-to-trough decline	-7.48%	-9.74%	+2.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.93%	3.04%	-0.11%

Volatility

WFMIX vs. IDMO - Volatility Comparison

The current volatility for Allspring Special Mid Cap Value Fund Class I (WFMIX) is 4.41%, while Invesco S&P International Developed Momentum ETF (IDMO) has a volatility of 7.92%. This indicates that WFMIX experiences smaller price fluctuations and is considered to be less risky than IDMO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WFMIX	IDMO	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.41%	7.92%	-3.51%
Volatility (6M) Calculated over the trailing 6-month period	10.78%	16.02%	-5.24%
Volatility (1Y) Calculated over the trailing 1-year period	14.16%	17.92%	-3.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.23%	18.03%	-0.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.91%	18.18%	+0.73%

WFMIX vs. IDMO - Expense Ratio Comparison

WFMIX has a 0.80% expense ratio, which is higher than IDMO's 0.25% expense ratio.

Dividends

WFMIX vs. IDMO - Dividend Comparison

WFMIX's dividend yield for the trailing twelve months is around 10.17%, more than IDMO's 3.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IDMO Invesco S&P International Developed Momentum ETF	3.52%	3.71%	2.24%	2.89%	3.66%	1.81%	1.63%	2.78%	3.27%	3.08%	2.18%	2.52%
WFMIX Allspring Special Mid Cap Value Fund Class I	10.17%	11.24%	8.00%	5.51%	8.71%	9.87%	0.66%	7.48%	2.74%	4.41%	1.44%	4.47%

Frequently Asked Questions

Can I hold both WFMIX and IDMO in my portfolio?

WFMIX and IDMO have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WFMIX or IDMO?

IDMO has higher volatility (7.92%) compared to WFMIX (4.41%). In terms of maximum drawdown, WFMIX dropped -52.70% vs IDMO's -39.38%.

Which has better risk-adjusted returns?

IDMO currently has the higher Sharpe Ratio (1.30 vs 1.23), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.