LSSCX vs. BOSOX

Last updated Jun 24, 2026

LSSCX (Loomis Sayles Small Cap Value Fund) and BOSOX (Boston Trust Small Cap Fund) are both Small Cap Blend Equities funds. Over the past 10 years, LSSCX returned 10.56%/yr vs 10.86%/yr for BOSOX. Their correlation of 0.94 suggests significant overlap in exposure. LSSCX charges 0.90%/yr vs 1.00%/yr for BOSOX.

Performance

LSSCX vs. BOSOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Loomis Sayles Small Cap Value Fund (LSSCX) and Boston Trust Small Cap Fund (BOSOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LSSCX achieves a 19.98% return, which is significantly higher than BOSOX's 10.07% return. Both investments have delivered pretty close results over the past 10 years, with LSSCX having a 10.56% annualized return and BOSOX not far ahead at 10.86%.

LSSCX

• 1D: 0.00%
• 1M: 5.43%
• YTD: 19.98%
• 6M: 17.56%
• 1Y: 30.20%
• 3Y*: 16.47%
• 5Y*: 9.37%
• 10Y*: 10.56%

BOSOX

• 1D: -0.16%
• 1M: 3.75%
• YTD: 10.07%
• 6M: 7.35%
• 1Y: 10.15%
• 3Y*: 9.16%
• 5Y*: 5.72%
• 10Y*: 10.86%

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

LSSCX vs. BOSOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LSSCX Loomis Sayles Small Cap Value Fund	19.98%	5.31%	10.89%	19.39%	-11.52%	29.03%	2.29%	25.06%	-16.81%	10.01%
BOSOX Boston Trust Small Cap Fund	10.07%	-4.04%	12.52%	10.09%	-9.05%	28.10%	8.27%	38.35%	-6.01%	12.24%

Correlation

The correlation between LSSCX and BOSOX is 0.70, 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	0.70
Correlation (3Y) Calculated over the trailing 3-year period	0.83
Correlation (5Y) Calculated over the trailing 5-year period	0.88
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Dec 19, 2005	0.94

Over the past year, the correlation between LSSCX and BOSOX has dropped to 0.70 - well below their long-term average of 0.94, suggesting their price drivers have been diverging.

Return for Risk

LSSCX vs. BOSOX — Risk / Return Rank

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

LSSCX

LSSCX Risk / Return Rank: 67
LSSCX Sharpe Ratio Rank: 64
LSSCX Sortino Ratio Rank: 70
LSSCX Omega Ratio Rank: 51
LSSCX Calmar Ratio Rank: 85
LSSCX Martin Ratio Rank: 65

BOSOX

BOSOX Risk / Return Rank: 11
BOSOX Sharpe Ratio Rank: 10
BOSOX Sortino Ratio Rank: 12
BOSOX Omega Ratio Rank: 10
BOSOX Calmar Ratio Rank: 13
BOSOX Martin Ratio Rank: 13

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.

LSSCX vs. BOSOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Loomis Sayles Small Cap Value Fund (LSSCX) and Boston Trust Small Cap Fund (BOSOX). 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.

	LSSCX	BOSOX	Difference
Sharpe ratio: Return per unit of total volatility	2.17	0.79	+1.38
Sortino ratio: Return per unit of downside risk	3.18	1.29	+1.90
Omega ratio: Gain probability vs. loss probability	1.36	1.14	+0.21
Calmar ratio: Return relative to maximum drawdown	3.85	1.12	+2.73
Martin ratio: Return relative to average drawdown	11.96	3.38	+8.58

LSSCX vs. BOSOX - Sharpe Ratio Comparison

The current LSSCX Sharpe Ratio is 2.17, which is higher than the BOSOX Sharpe Ratio of 0.79. The chart below compares the historical Sharpe Ratios of LSSCX and BOSOX, 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

LSSCX vs. BOSOX - Drawdown Comparison

The maximum LSSCX drawdown since its inception was -54.28%, which is greater than BOSOX's maximum drawdown of -51.32%. Use the drawdown chart below to compare losses from any high point for LSSCX and BOSOX.

Drawdown Indicators

	LSSCX	BOSOX	Difference
Max Drawdown Largest peak-to-trough decline	-54.28%	-51.32%	-2.96%
Max Drawdown (1Y) Largest decline over 1 year	-9.89%	-10.69%	+0.80%
Max Drawdown (3Y) Largest decline over 3 years	-25.10%	-22.36%	-2.74%
Max Drawdown (5Y) Largest decline over 5 years	-25.10%	-22.36%	-2.74%
Max Drawdown (10Y) Largest decline over 10 years	-44.65%	-36.79%	-7.86%
Current Drawdown Current decline from peak	0.00%	-3.66%	+3.66%
Average Drawdown Average peak-to-trough decline	-7.57%	-7.27%	-0.30%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.00%	3.54%	-0.54%

Volatility

LSSCX vs. BOSOX - Volatility Comparison

Loomis Sayles Small Cap Value Fund (LSSCX) has a higher volatility of 4.34% compared to Boston Trust Small Cap Fund (BOSOX) at 3.93%. This indicates that LSSCX's price experiences larger fluctuations and is considered to be riskier than BOSOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LSSCX	BOSOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.34%	3.93%	+0.41%
Volatility (6M) Calculated over the trailing 6-month period	12.74%	10.26%	+2.48%
Volatility (1Y) Calculated over the trailing 1-year period	17.61%	15.22%	+2.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.90%	17.82%	+3.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.44%	19.57%	+2.87%

LSSCX vs. BOSOX - Expense Ratio Comparison

LSSCX has a 0.90% expense ratio, which is lower than BOSOX's 1.00% expense ratio.

Dividends

LSSCX vs. BOSOX - Dividend Comparison

LSSCX's dividend yield for the trailing twelve months is around 14.58%, more than BOSOX's 4.01% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BOSOX Boston Trust Small Cap Fund	4.01%	4.41%	6.52%	0.78%	5.09%	8.93%	2.56%	12.46%	16.19%	9.13%	3.14%	18.92%
LSSCX Loomis Sayles Small Cap Value Fund	14.58%	17.50%	10.71%	20.30%	12.74%	19.01%	8.04%	8.65%	17.43%	12.58%	8.27%	11.35%

Frequently Asked Questions

Can I hold both LSSCX and BOSOX in my portfolio?

LSSCX and BOSOX have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LSSCX or BOSOX?

LSSCX has higher volatility (4.34%) compared to BOSOX (3.93%). In terms of maximum drawdown, LSSCX dropped -54.28% vs BOSOX's -51.32%.

Which has better risk-adjusted returns?

LSSCX currently has the higher Sharpe Ratio (2.17 vs 0.79), 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.