WMBFX vs. BRUFX

Last updated Jul 14, 2026

WMBFX (Allspring Spectrum Conservative Growth Fund) and BRUFX (Bruce Fund) are both Diversified Portfolio funds. Over the past 10 years, WMBFX returned 5.35%/yr vs 7.57%/yr for BRUFX. A 0.64 correlation means they provide meaningful diversification when combined. WMBFX charges 1.50%/yr vs 0.68%/yr for BRUFX.

Performance

WMBFX vs. BRUFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Allspring Spectrum Conservative Growth Fund (WMBFX) and Bruce Fund (BRUFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WMBFX achieves a 6.49% return, which is significantly lower than BRUFX's 15.33% return. Over the past 10 years, WMBFX has underperformed BRUFX with an annualized return of 5.35%, while BRUFX has yielded a comparatively higher 7.57% annualized return.

WMBFX

• 1D: 0.09%
• 1M: 0.07%
• 6M: 4.32%
• YTD: 6.49%
• 1Y: 13.90%
• 3Y*: 10.05%
• 5Y*: 3.72%
• 10Y*: 5.35%

BRUFX

• 1D: 0.25%
• 1M: 3.44%
• 6M: 12.23%
• YTD: 15.33%
• 1Y: 26.47%
• 3Y*: 12.46%
• 5Y*: 5.84%
• 10Y*: 7.57%

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

WMBFX vs. BRUFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WMBFX Allspring Spectrum Conservative Growth Fund	6.49%	11.39%	6.59%	9.45%	-15.07%	7.64%	14.95%	13.72%	-5.67%	10.27%
BRUFX Bruce Fund	15.33%	14.89%	4.45%	-0.74%	-8.80%	17.35%	12.06%	22.42%	-3.99%	12.48%

Correlation

The correlation between WMBFX and BRUFX is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.63
Correlation (All Time) Calculated using the full available price history since Aug 3, 2012	0.64

The correlation between WMBFX and BRUFX shifts across timeframes, from 0.49 (1 year) to 0.64 (all time), reflecting how their relationship changes across market environments.

Return for Risk

WMBFX vs. BRUFX — Risk / Return Rank

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

WMBFX

WMBFX Risk / Return Rank: 58
WMBFX Sharpe Ratio Rank: 52
WMBFX Sortino Ratio Rank: 48
WMBFX Omega Ratio Rank: 50
WMBFX Calmar Ratio Rank: 84
WMBFX Martin Ratio Rank: 58

BRUFX

BRUFX Risk / Return Rank: 87
BRUFX Sharpe Ratio Rank: 89
BRUFX Sortino Ratio Rank: 87
BRUFX Omega Ratio Rank: 82
BRUFX Calmar Ratio Rank: 87
BRUFX Martin Ratio Rank: 93

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.

WMBFX vs. BRUFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Allspring Spectrum Conservative Growth Fund (WMBFX) and Bruce Fund (BRUFX). 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.

	WMBFX	BRUFX	Difference
Sharpe ratio: Return per unit of total volatility	1.61	2.39	-0.78
Sortino ratio: Return per unit of downside risk	2.21	3.42	-1.21
Omega ratio: Gain probability vs. loss probability	1.29	1.42	-0.13
Calmar ratio: Return relative to maximum drawdown	3.13	3.36	-0.23
Martin ratio: Return relative to average drawdown	9.11	14.90	-5.80

WMBFX vs. BRUFX - Sharpe Ratio Comparison

The current WMBFX Sharpe Ratio is 1.61, which is lower than the BRUFX Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of WMBFX and BRUFX, 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

WMBFX vs. BRUFX - Drawdown Comparison

The maximum WMBFX drawdown since its inception was -19.15%, smaller than the maximum BRUFX drawdown of -44.50%. Use the drawdown chart below to compare losses from any high point for WMBFX and BRUFX.

Drawdown Indicators

	WMBFX	BRUFX	Difference
Max Drawdown Largest peak-to-trough decline	-19.15%	-44.50%	+25.35%
Max Drawdown (1Y) Largest decline over 1 year	-4.26%	-7.67%	+3.41%
Max Drawdown (3Y) Largest decline over 3 years	-6.57%	-9.66%	+3.09%
Max Drawdown (5Y) Largest decline over 5 years	-19.15%	-17.91%	-1.24%
Max Drawdown (10Y) Largest decline over 10 years	-19.15%	-25.44%	+6.29%
Current Drawdown Current decline from peak	-1.76%	-0.85%	-0.91%
Average Drawdown Average peak-to-trough decline	-4.63%	-9.05%	+4.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.46%	1.73%	-0.27%

Volatility

WMBFX vs. BRUFX - Volatility Comparison

Allspring Spectrum Conservative Growth Fund (WMBFX) and Bruce Fund (BRUFX) have volatilities of 3.21% and 3.11%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WMBFX	BRUFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.21%	3.11%	+0.10%
Volatility (6M) Calculated over the trailing 6-month period	6.41%	8.42%	-2.01%
Volatility (1Y) Calculated over the trailing 1-year period	8.27%	10.78%	-2.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.70%	10.57%	-2.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.23%	11.64%	-4.41%

WMBFX vs. BRUFX - Expense Ratio Comparison

WMBFX has a 1.50% expense ratio, which is higher than BRUFX's 0.68% expense ratio.

Dividends

WMBFX vs. BRUFX - Dividend Comparison

WMBFX's dividend yield for the trailing twelve months is around 2.14%, less than BRUFX's 5.51% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRUFX Bruce Fund	5.51%	6.35%	5.01%	6.46%	13.31%	9.25%	5.83%	2.03%	2.49%	4.11%	6.26%	4.63%
WMBFX Allspring Spectrum Conservative Growth Fund	2.14%	2.20%	1.97%	2.60%	5.57%	9.26%	9.32%	2.29%	8.93%	9.55%	0.00%	0.00%

Frequently Asked Questions

Can I hold both WMBFX and BRUFX in my portfolio?

WMBFX and BRUFX have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WMBFX or BRUFX?

WMBFX has higher volatility (3.21%) compared to BRUFX (3.11%). In terms of maximum drawdown, WMBFX dropped -19.15% vs BRUFX's -44.50%.

Which has better risk-adjusted returns?

BRUFX currently has the higher Sharpe Ratio (2.39 vs 1.61), 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.