THPMX vs. SWMCX

Last updated Jun 3, 2026

THPMX (Thompson MidCap Fund) and SWMCX (Schwab U.S. Mid-Cap Index Fund) are both Mid Cap Blend Equities funds. Over the past 5 years, THPMX returned 7.45%/yr vs 8.33%/yr for SWMCX. Their correlation of 0.92 suggests significant overlap in exposure. THPMX charges 1.15%/yr vs 0.04%/yr for SWMCX.

Performance

THPMX vs. SWMCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Thompson MidCap Fund (THPMX) and Schwab U.S. Mid-Cap Index Fund (SWMCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, THPMX achieves a 12.02% return, which is significantly lower than SWMCX's 12.72% return.

THPMX

• 1D: 0.24%
• 1M: 4.36%
• YTD: 12.02%
• 6M: 15.56%
• 1Y: 35.62%
• 3Y*: 17.64%
• 5Y*: 7.45%
• 10Y*: 11.27%

SWMCX

• 1D: 0.68%
• 1M: 4.11%
• YTD: 12.72%
• 6M: 12.56%
• 1Y: 22.05%
• 3Y*: 17.46%
• 5Y*: 8.33%
• 10Y*: —

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

THPMX vs. SWMCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
THPMX Thompson MidCap Fund	12.02%	20.08%	7.70%	17.01%	-14.84%	29.71%	11.97%	33.48%	-21.90%	0.75%
SWMCX Schwab U.S. Mid-Cap Index Fund	12.72%	10.54%	15.28%	17.20%	-17.31%	22.55%	17.03%	30.46%	-9.16%	0.40%

Correlation

The correlation between THPMX and SWMCX is 0.91, 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	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (All Time) Calculated using the full available price history since Dec 20, 2017	0.92

The correlation between THPMX and SWMCX has been stable across timeframes, ranging from 0.91 to 0.94 - a consistent structural relationship.

Return for Risk

THPMX vs. SWMCX — Risk / Return Rank

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

THPMX

THPMX Risk / Return Rank: 64
THPMX Sharpe Ratio Rank: 63
THPMX Sortino Ratio Rank: 61
THPMX Omega Ratio Rank: 54
THPMX Calmar Ratio Rank: 77
THPMX Martin Ratio Rank: 63

SWMCX

SWMCX Risk / Return Rank: 43
SWMCX Sharpe Ratio Rank: 36
SWMCX Sortino Ratio Rank: 36
SWMCX Omega Ratio Rank: 33
SWMCX Calmar Ratio Rank: 56
SWMCX Martin Ratio Rank: 55

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.

THPMX vs. SWMCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Thompson MidCap Fund (THPMX) and Schwab U.S. Mid-Cap Index Fund (SWMCX). 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.

	THPMX	SWMCX	Difference
Sharpe ratio Return per unit of total volatility	2.32	1.74	+0.58
Sortino ratio Return per unit of downside risk	3.27	2.50	+0.77
Omega ratio Gain probability vs. loss probability	1.41	1.30	+0.10
Calmar ratio Return relative to maximum drawdown	3.49	2.87	+0.62
Martin ratio Return relative to average drawdown	12.51	11.01	+1.50
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

THPMX vs. SWMCX - Sharpe Ratio Comparison

The current THPMX Sharpe Ratio is 2.32, which is higher than the SWMCX Sharpe Ratio of 1.74. The chart below compares the historical Sharpe Ratios of THPMX and SWMCX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	THPMX	SWMCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.32	1.74	+0.58
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.36	0.46	-0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.50	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	0.52	+0.05

Drawdowns

THPMX vs. SWMCX - Drawdown Comparison

The maximum THPMX drawdown since its inception was -47.55%, which is greater than SWMCX's maximum drawdown of -40.34%. Use the drawdown chart below to compare losses from any high point for THPMX and SWMCX.

Drawdown Indicators

	THPMX	SWMCX	Difference
Max Drawdown Largest peak-to-trough decline	-47.55%	-40.34%	-7.21%
Max Drawdown (1Y) Largest decline over 1 year	-9.90%	-8.15%	-1.75%
Max Drawdown (3Y) Largest decline over 3 years	-21.52%	-21.07%	-0.45%
Max Drawdown (5Y) Largest decline over 5 years	-25.29%	-26.09%	+0.80%
Max Drawdown (10Y) Largest decline over 10 years	-47.55%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-6.77%	-6.63%	-0.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.76%	2.12%	+0.64%

Volatility

THPMX vs. SWMCX - Volatility Comparison

Thompson MidCap Fund (THPMX) has a higher volatility of 3.82% compared to Schwab U.S. Mid-Cap Index Fund (SWMCX) at 3.27%. This indicates that THPMX's price experiences larger fluctuations and is considered to be riskier than SWMCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	THPMX	SWMCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.82%	3.27%	+0.55%
Volatility (6M) Calculated over the trailing 6-month period	10.79%	9.96%	+0.83%
Volatility (1Y) Calculated over the trailing 1-year period	15.34%	13.42%	+1.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.60%	18.25%	+2.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.77%	20.64%	+2.13%

THPMX vs. SWMCX - Expense Ratio Comparison

THPMX has a 1.15% expense ratio, which is higher than SWMCX's 0.04% expense ratio.

Dividends

THPMX vs. SWMCX - Dividend Comparison

THPMX's dividend yield for the trailing twelve months is around 8.47%, more than SWMCX's 1.89% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SWMCX Schwab U.S. Mid-Cap Index Fund	1.89%	2.13%	2.60%	1.49%	1.59%	2.93%	1.45%	2.44%	1.41%	0.00%	0.00%	0.00%
THPMX Thompson MidCap Fund	8.47%	9.48%	8.04%	7.60%	12.04%	9.76%	0.33%	2.93%	7.29%	7.51%	4.84%	9.46%

Frequently Asked Questions

Can I hold both THPMX and SWMCX in my portfolio?

With a correlation of 0.91, THPMX and SWMCX 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, THPMX or SWMCX?

THPMX has higher volatility (3.82%) compared to SWMCX (3.27%). In terms of maximum drawdown, THPMX dropped -47.55% vs SWMCX's -40.34%.

Which has better risk-adjusted returns?

THPMX currently has the higher Sharpe Ratio (2.32 vs 1.74), 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.