WAMFX vs. WASMX

Last updated Jun 24, 2026

WAMFX (Boston Trust Walden Midcap Fund) and WASMX (Boston Trust Walden SMID Cap Fund) are both Mid Cap Blend Equities funds from Boston Trust Walden. Over the past 10 years, WAMFX returned 10.54%/yr vs 10.40%/yr for WASMX. With a 0.97 correlation, they move nearly in lockstep. WAMFX charges 0.99%/yr vs 1.00%/yr for WASMX.

Performance

WAMFX vs. WASMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Boston Trust Walden Midcap Fund (WAMFX) and Boston Trust Walden SMID Cap Fund (WASMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WAMFX achieves a 2.40% return, which is significantly lower than WASMX's 3.12% return. Both investments have delivered pretty close results over the past 10 years, with WAMFX having a 10.54% annualized return and WASMX not far behind at 10.40%.

WAMFX

• 1D: 0.00%
• 1M: 0.83%
• YTD: 2.40%
• 6M: 1.19%
• 1Y: 7.06%
• 3Y*: 9.45%
• 5Y*: 6.29%
• 10Y*: 10.54%

WASMX

• 1D: 0.24%
• 1M: 2.16%
• YTD: 3.12%
• 6M: 1.50%
• 1Y: 5.85%
• 3Y*: 9.26%
• 5Y*: 5.15%
• 10Y*: 10.40%

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

WAMFX vs. WASMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WAMFX Boston Trust Walden Midcap Fund	2.40%	4.82%	10.39%	13.90%	-10.87%	24.85%	9.56%	36.98%	-3.59%	16.21%
WASMX Boston Trust Walden SMID Cap Fund	3.12%	0.31%	10.39%	16.40%	-14.57%	30.04%	9.22%	32.50%	-5.60%	14.91%

Correlation

The correlation between WAMFX and WASMX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jun 29, 2012	0.97

The correlation between WAMFX and WASMX has been stable across timeframes, ranging from 0.95 to 0.97 - a consistent structural relationship.

Return for Risk

WAMFX vs. WASMX — Risk / Return Rank

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

WAMFX

WAMFX Risk / Return Rank: 10
WAMFX Sharpe Ratio Rank: 9
WAMFX Sortino Ratio Rank: 10
WAMFX Omega Ratio Rank: 9
WAMFX Calmar Ratio Rank: 11
WAMFX Martin Ratio Rank: 11

WASMX

WASMX Risk / Return Rank: 7
WASMX Sharpe Ratio Rank: 7
WASMX Sortino Ratio Rank: 8
WASMX Omega Ratio Rank: 7
WASMX Calmar Ratio Rank: 8
WASMX 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.

WAMFX vs. WASMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Boston Trust Walden Midcap Fund (WAMFX) and Boston Trust Walden SMID Cap Fund (WASMX). 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.

	WAMFX	WASMX	Difference
Sharpe ratio: Return per unit of total volatility	0.71	0.56	+0.15
Sortino ratio: Return per unit of downside risk	1.13	0.95	+0.18
Omega ratio: Gain probability vs. loss probability	1.13	1.11	+0.02
Calmar ratio: Return relative to maximum drawdown	1.01	0.67	+0.34
Martin ratio: Return relative to average drawdown	2.92	1.86	+1.05

WAMFX vs. WASMX - Sharpe Ratio Comparison

The current WAMFX Sharpe Ratio is 0.71, which is comparable to the WASMX Sharpe Ratio of 0.56. The chart below compares the historical Sharpe Ratios of WAMFX and WASMX, 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

WAMFX vs. WASMX - Drawdown Comparison

The maximum WAMFX drawdown since its inception was -36.81%, roughly equal to the maximum WASMX drawdown of -37.74%. Use the drawdown chart below to compare losses from any high point for WAMFX and WASMX.

Drawdown Indicators

	WAMFX	WASMX	Difference
Max Drawdown Largest peak-to-trough decline	-36.81%	-37.74%	+0.93%
Max Drawdown (1Y) Largest decline over 1 year	-8.38%	-11.38%	+3.00%
Max Drawdown (3Y) Largest decline over 3 years	-17.51%	-20.52%	+3.01%
Max Drawdown (5Y) Largest decline over 5 years	-20.82%	-23.07%	+2.25%
Max Drawdown (10Y) Largest decline over 10 years	-36.81%	-37.74%	+0.93%
Current Drawdown Current decline from peak	-2.17%	-4.60%	+2.43%
Average Drawdown Average peak-to-trough decline	-3.93%	-5.22%	+1.29%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.91%	4.11%	-1.20%

Volatility

WAMFX vs. WASMX - Volatility Comparison

The current volatility for Boston Trust Walden Midcap Fund (WAMFX) is 3.26%, while Boston Trust Walden SMID Cap Fund (WASMX) has a volatility of 3.50%. This indicates that WAMFX experiences smaller price fluctuations and is considered to be less risky than WASMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WAMFX	WASMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.26%	3.50%	-0.24%
Volatility (6M) Calculated over the trailing 6-month period	8.36%	9.37%	-1.01%
Volatility (1Y) Calculated over the trailing 1-year period	12.04%	13.65%	-1.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.81%	17.16%	-1.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.49%	18.61%	-1.12%

WAMFX vs. WASMX - Expense Ratio Comparison

WAMFX has a 0.99% expense ratio, which is lower than WASMX's 1.00% expense ratio.

Dividends

WAMFX vs. WASMX - Dividend Comparison

WAMFX's dividend yield for the trailing twelve months is around 7.06%, more than WASMX's 1.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
WAMFX Boston Trust Walden Midcap Fund	7.06%	7.23%	3.49%	4.84%	5.55%	4.82%	3.87%	12.83%	7.08%	0.45%	5.06%	5.54%
WASMX Boston Trust Walden SMID Cap Fund	1.60%	1.65%	1.67%	0.52%	4.90%	4.75%	1.86%	9.96%	4.40%	0.52%	5.41%	7.06%

Frequently Asked Questions

Can I hold both WAMFX and WASMX in my portfolio?

With a correlation of 0.95, WAMFX and WASMX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, WAMFX or WASMX?

WASMX has higher volatility (3.50%) compared to WAMFX (3.26%). In terms of maximum drawdown, WAMFX dropped -36.81% vs WASMX's -37.74%.

Which has better risk-adjusted returns?

WAMFX currently has the higher Sharpe Ratio (0.71 vs 0.56), 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.