STMSX vs. FTHSX

Last updated Jul 22, 2026

STMSX (SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund) and FTHSX (FullerThaler Behavioral Small-Cap Equity Fund Class I) are both Small Cap Blend Equities funds. Over the past 10 years, STMSX returned 9.17%/yr vs 13.74%/yr for FTHSX. Their correlation of 0.95 suggests significant overlap in exposure. STMSX charges 1.11%/yr vs 0.76%/yr for FTHSX.

Performance

STMSX vs. FTHSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund (STMSX) and FullerThaler Behavioral Small-Cap Equity Fund Class I (FTHSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

As of year-to-date, both investments have demonstrated similar returns, with STMSX at 14.88% and FTHSX at 14.88%. Over the past 10 years, STMSX has underperformed FTHSX with an annualized return of 9.17%, while FTHSX has yielded a comparatively higher 13.74% annualized return.

STMSX

• 1D: -0.58%
• 1M: -0.07%
• 6M: 10.27%
• YTD: 14.88%
• 1Y: 24.37%
• 3Y*: 13.79%
• 5Y*: 7.27%
• 10Y*: 9.17%
• ALL TIME*: 7.83%

FTHSX

• 1D: -0.69%
• 1M: 1.80%
• 6M: 10.97%
• YTD: 14.88%
• 1Y: 26.33%
• 3Y*: 17.91%
• 5Y*: 12.90%
• 10Y*: 13.74%
• ALL TIME*: 13.58%

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

STMSX vs. FTHSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
STMSX SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund	14.88%	8.67%	13.34%	12.97%	-16.91%	23.68%	10.41%	21.99%	-12.34%	15.89%
FTHSX FullerThaler Behavioral Small-Cap Equity Fund Class I	14.88%	12.02%	16.17%	22.55%	-7.49%	30.83%	10.38%	28.06%	-13.18%	17.35%

Correlation

The correlation between STMSX and FTHSX is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.95
Correlation (All Time) Calculated using the full available price history since Oct 28, 2015	0.95

The correlation between STMSX and FTHSX has been stable across timeframes, ranging from 0.93 to 0.96 - a consistent structural relationship.

Return for Risk

STMSX vs. FTHSX — Risk / Return Rank

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

STMSX

STMSX Risk / Return Rank: 55
STMSX Sharpe Ratio Rank: 48
STMSX Sortino Ratio Rank: 53
STMSX Omega Ratio Rank: 43
STMSX Calmar Ratio Rank: 71
STMSX Martin Ratio Rank: 59

FTHSX

FTHSX Risk / Return Rank: 69
FTHSX Sharpe Ratio Rank: 67
FTHSX Sortino Ratio Rank: 71
FTHSX Omega Ratio Rank: 60
FTHSX Calmar Ratio Rank: 77
FTHSX Martin Ratio Rank: 71

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.

STMSX vs. FTHSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund (STMSX) and FullerThaler Behavioral Small-Cap Equity Fund Class I (FTHSX). 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.

	STMSX	FTHSX	Difference
Sharpe ratio: Return per unit of total volatility	1.45	1.73	-0.28
Sortino ratio: Return per unit of downside risk	2.18	2.60	-0.42
Omega ratio: Gain probability vs. loss probability	1.25	1.30	-0.05
Calmar ratio: Return relative to maximum drawdown	2.51	2.75	-0.24
Martin ratio: Return relative to average drawdown	8.72	9.86	-1.14

STMSX vs. FTHSX - Sharpe Ratio Comparison

The current STMSX Sharpe Ratio is 1.45, which is comparable to the FTHSX Sharpe Ratio of 1.73. The chart below compares the historical Sharpe Ratios of STMSX and FTHSX, 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

STMSX vs. FTHSX - Drawdown Comparison

The maximum STMSX drawdown since its inception was -60.78%, which is greater than FTHSX's maximum drawdown of -37.74%. Use the drawdown chart below to compare losses from any high point for STMSX and FTHSX.

Drawdown Indicators

	STMSX	FTHSX	Difference
Max Drawdown Largest peak-to-trough decline	-60.78%	-37.74%	-23.04%
Max Drawdown (1Y) Largest decline over 1 year	-9.69%	-9.42%	-0.27%
Max Drawdown (3Y) Largest decline over 3 years	-34.36%	-24.58%	-9.78%
Max Drawdown (5Y) Largest decline over 5 years	-34.36%	-24.58%	-9.78%
Max Drawdown (10Y) Largest decline over 10 years	-43.16%	-37.74%	-5.42%
Current Drawdown Current decline from peak	-2.21%	-1.18%	-1.03%
Average Drawdown Average peak-to-trough decline	-10.57%	-5.58%	-4.99%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.78%	2.62%	+0.16%

Volatility

STMSX vs. FTHSX - Volatility Comparison

SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund (STMSX) has a higher volatility of 3.62% compared to FullerThaler Behavioral Small-Cap Equity Fund Class I (FTHSX) at 3.08%. This indicates that STMSX's price experiences larger fluctuations and is considered to be riskier than FTHSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	STMSX	FTHSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.62%	3.08%	+0.54%
Volatility (6M) Calculated over the trailing 6-month period	12.40%	10.97%	+1.43%
Volatility (1Y) Calculated over the trailing 1-year period	16.84%	15.04%	+1.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.07%	18.80%	+4.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.83%	20.07%	+2.76%

STMSX vs. FTHSX - Expense Ratio Comparison

STMSX has a 1.11% expense ratio, which is higher than FTHSX's 0.76% expense ratio.

Dividends

STMSX vs. FTHSX - Dividend Comparison

STMSX's dividend yield for the trailing twelve months is around 3.60%, more than FTHSX's 0.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FTHSX FullerThaler Behavioral Small-Cap Equity Fund Class I	0.47%	0.54%	8.05%	1.81%	1.23%	3.77%	0.35%	0.39%	0.55%	0.26%	0.00%	15.40%
STMSX SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund	3.60%	4.41%	21.88%	3.11%	0.84%	9.68%	0.29%	2.54%	9.26%	1.89%	0.41%	0.25%

Frequently Asked Questions

Can I hold both STMSX and FTHSX in my portfolio?

With a correlation of 0.93, STMSX and FTHSX 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, STMSX or FTHSX?

STMSX has higher volatility (3.62%) compared to FTHSX (3.08%). In terms of maximum drawdown, STMSX dropped -60.78% vs FTHSX's -37.74%.

Which has better risk-adjusted returns?

FTHSX currently has the higher Sharpe Ratio (1.73 vs 1.45), 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.