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SWMCX vs. TARKX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

SWMCX vs. TARKX

Last updated Jun 24, 2026

SWMCX (Schwab U.S. Mid-Cap Index Fund) and TARKX (Tarkio Fund) are both Mid Cap Blend Equities funds. Over the past 5 years, SWMCX returned 8.43%/yr vs 11.80%/yr for TARKX. Their correlation of 0.86 suggests significant overlap in exposure. SWMCX charges 0.04%/yr vs 1.00%/yr for TARKX.

Performance

SWMCX vs. TARKX - Performance Comparison

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

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Returns By Period

In the year-to-date period, SWMCX achieves a 13.97% return, which is significantly lower than TARKX's 23.23% return.

SWMCX

1D
0.49%
1M
3.34%
YTD
13.97%
6M
12.48%
1Y
22.52%
3Y*
17.51%
5Y*
8.43%
10Y*
—

TARKX

1D
0.16%
1M
3.32%
YTD
23.23%
6M
21.06%
1Y
59.75%
3Y*
28.59%
5Y*
11.80%
10Y*
15.74%
*Multi-year figures are annualized to reflect compound growth (CAGR)

SWMCX vs. TARKX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
SWMCX
Schwab U.S. Mid-Cap Index Fund		13.97%10.54%15.28%17.20%-17.31%22.55%17.03%30.46%-9.16%0.40%
TARKX
Tarkio Fund		23.23%30.18%21.72%26.33%-30.39%24.41%27.00%29.54%-23.30%-1.61%

Correlation

The correlation between SWMCX and TARKX is 0.73, 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

0.73

Correlation (3Y)
Calculated over the trailing 3-year period

0.80

Correlation (5Y)
Calculated over the trailing 5-year period

0.86

Correlation (All Time)
Calculated using the full available price history since Dec 19, 2017

0.86

The correlation between SWMCX and TARKX shifts across timeframes, from 0.73 (1 year) to 0.86 (5 years), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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Schwab U.S. Mid-Cap Index Fund

Tarkio Fund

Often compared with SWMCX:
SWMCX vs. SCHMSWMCX vs. VIMAXSWMCX vs. SWPPXSWMCX vs. SPMDSWMCX vs. IVOOSWMCX vs. SCHDSWMCX vs. SCHB
Often compared with TARKX:
TARKX vs. ETSYTARKX vs. AAPLTARKX vs. COSTTARKX vs. KMVAXTARKX vs. TSMDXTARKX vs. QCGDXTARKX vs. FITIX

Return for Risk

SWMCX vs. TARKX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
SWMCX
SWMCX Risk / Return Rank: 4848
Overall Rank
SWMCX Sharpe Ratio Rank: 4040
Sharpe Ratio Rank
SWMCX Sortino Ratio Rank: 4040
Sortino Ratio Rank
SWMCX Omega Ratio Rank: 3636
Omega Ratio Rank
SWMCX Calmar Ratio Rank: 6363
Calmar Ratio Rank
SWMCX Martin Ratio Rank: 5959
Martin Ratio Rank
TARKX
TARKX Risk / Return Rank: 6868
Overall Rank
TARKX Sharpe Ratio Rank: 7070
Sharpe Ratio Rank
TARKX Sortino Ratio Rank: 5757
Sortino Ratio Rank
TARKX Omega Ratio Rank: 5353
Omega Ratio Rank
TARKX Calmar Ratio Rank: 8484
Calmar Ratio Rank
TARKX Martin Ratio Rank: 7878
Martin Ratio Rank
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.

SWMCX vs. TARKX - Risk-Adjusted Trends Comparison

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

SWMCXTARKXDifference
Sharpe ratioReturn per unit of total volatility
1.71
2.25

-0.54

Sortino ratioReturn per unit of downside risk
2.44
2.90

-0.46

Omega ratioGain probability vs. loss probability

1.30

1.37

-0.07

Calmar ratioReturn relative to maximum drawdown

2.90

3.73

-0.83

Martin ratioReturn relative to average drawdown

11.06

13.58

-2.52

SWMCX vs. TARKX - Sharpe Ratio Comparison

The current SWMCX Sharpe Ratio is 1.71, which is comparable to the TARKX Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of SWMCX and TARKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

SWMCX vs. TARKX - Drawdown Comparison

The maximum SWMCX drawdown since its inception was -40.34%, roughly equal to the maximum TARKX drawdown of -40.55%. Use the drawdown chart below to compare losses from any high point for SWMCX and TARKX.

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Drawdown Indicators

SWMCXTARKXDifference

Max Drawdown

Largest peak-to-trough decline

-40.34%

-40.55%

+0.21%

Max Drawdown (1Y)

Largest decline over 1 year

-8.15%

-16.99%

+8.84%

Max Drawdown (3Y)

Largest decline over 3 years

-21.07%

-36.99%

+15.92%

Max Drawdown (5Y)

Largest decline over 5 years

-26.09%

-40.38%

+14.29%

Max Drawdown (10Y)

Largest decline over 10 years

—

-40.55%

—

Current Drawdown

Current decline from peak

-0.24%

-1.21%

+0.97%

Average Drawdown

Average peak-to-trough decline

-6.60%

-10.34%

+3.74%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.13%

4.65%

-2.52%

Volatility

SWMCX vs. TARKX - Volatility Comparison

The current volatility for Schwab U.S. Mid-Cap Index Fund (SWMCX) is 4.42%, while Tarkio Fund (TARKX) has a volatility of 8.93%. This indicates that SWMCX experiences smaller price fluctuations and is considered to be less risky than TARKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

SWMCXTARKXDifference

Volatility (1M)

Calculated over the trailing 1-month period

4.42%

8.93%

-4.51%

Volatility (6M)

Calculated over the trailing 6-month period

10.48%

21.64%

-11.16%

Volatility (1Y)

Calculated over the trailing 1-year period

13.85%

28.26%

-14.41%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

18.31%

27.69%

-9.38%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

20.62%

26.77%

-6.15%

SWMCX vs. TARKX - Expense Ratio Comparison

SWMCX has a 0.04% expense ratio, which is lower than TARKX's 1.00% expense ratio.

Dividends

SWMCX vs. TARKX - Dividend Comparison

SWMCX's dividend yield for the trailing twelve months is around 1.87%, less than TARKX's 4.46% yield.

PositionTTM20252024202320222021202020192018201720162015
SWMCX
Schwab U.S. Mid-Cap Index Fund		1.87%2.13%2.60%1.49%1.59%2.93%1.45%2.44%1.41%0.00%0.00%0.00%
TARKX
Tarkio Fund		4.46%5.50%1.51%2.98%10.62%1.40%0.50%5.21%3.34%1.70%0.47%0.36%

Frequently Asked Questions

SWMCX and TARKX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

TARKX has higher volatility (8.93%) compared to SWMCX (4.42%). In terms of maximum drawdown, SWMCX dropped -40.34% vs TARKX's -40.55%.

TARKX currently has the higher Sharpe Ratio (2.25 vs 1.71), 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.

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