IASMX vs. DFJSX

Last updated Aug 1, 2026

IASMX (Guinness Atkinson Asia Focus Fund) and DFJSX (DFA Japanese Small Company Portfolio) are both mutual funds - IASMX is a Asia Pacific Equities fund managed by Guinness Atkinson, while DFJSX is a Japan Equities fund managed by Dimensional. Over the past 10 years, IASMX returned 7.90%/yr vs 8.64%/yr for DFJSX. Their 0.38 correlation means their historical movements had little consistent relationship. IASMX charges 1.98%/yr vs 0.42%/yr for DFJSX.

Performance

IASMX vs. DFJSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Guinness Atkinson Asia Focus Fund (IASMX) and DFA Japanese Small Company Portfolio (DFJSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IASMX achieves a 13.26% return, which is significantly lower than DFJSX's 16.18% return. Over the past 10 years, IASMX has underperformed DFJSX with an annualized return of 7.90%, while DFJSX has yielded a comparatively higher 8.64% annualized return.

IASMX

• 1D: 2.35%
• 1M: 1.70%
• 6M: 7.33%
• YTD: 13.26%
• 1Y: 23.71%
• 3Y*: 12.47%
• 5Y*: 2.45%
• 10Y*: 7.90%
• ALL TIME*: 4.05%

DFJSX

• 1D: 3.85%
• 1M: 1.29%
• 6M: 9.56%
• YTD: 16.18%
• 1Y: 27.62%
• 3Y*: 19.22%
• 5Y*: 10.00%
• 10Y*: 8.64%
• ALL TIME*: 6.08%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
DFJSX DFA Japanese Small Company Portfolio	$0.00	$0.00	$0.00
IASMX Guinness Atkinson Asia Focus Fund	$0.00	$0.00	$0.00

IASMX vs. DFJSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IASMX Guinness Atkinson Asia Focus Fund	13.26%	29.64%	4.38%	5.95%	-28.04%	-6.46%	26.02%	29.32%	-17.58%	47.12%
DFJSX DFA Japanese Small Company Portfolio	16.18%	31.65%	4.35%	17.08%	-11.36%	-0.39%	3.78%	18.23%	-19.56%	35.69%

Correlation

The correlation between IASMX and DFJSX is 0.43, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.43
Correlation (3Y) Balances recent behavior with more history.	0.42
Correlation (5Y) Shows whether the relationship held over a longer period.	0.45
Correlation (10Y) Provides a long-term view across more market conditions.	0.47
Correlation (All Time) Calculated using the full available price history since Apr 29, 1996	0.38

Return for Risk

IASMX vs. DFJSX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

IASMX

IASMX Risk / Return Rank: 39
IASMX Sharpe Ratio Rank: 33
IASMX Sortino Ratio Rank: 32
IASMX Omega Ratio Rank: 32
IASMX Calmar Ratio Rank: 60
IASMX Martin Ratio Rank: 38

DFJSX

DFJSX Risk / Return Rank: 69
DFJSX Sharpe Ratio Rank: 74
DFJSX Sortino Ratio Rank: 73
DFJSX Omega Ratio Rank: 72
DFJSX Calmar Ratio Rank: 74
DFJSX Martin Ratio Rank: 54

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

IASMX vs. DFJSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Guinness Atkinson Asia Focus Fund (IASMX) and DFA Japanese Small Company Portfolio (DFJSX). 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.

	IASMX	DFJSX	Difference
Sharpe ratio: Return per unit of total volatility	1.10	1.75	-0.66
Sortino ratio: Return per unit of downside risk	1.58	2.50	-0.93
Omega ratio: Gain probability vs. loss probability	1.20	1.32	-0.12
Calmar ratio: Return relative to maximum drawdown	2.11	2.43	-0.32
Martin ratio: Return relative to average drawdown	5.67	7.29	-1.62

IASMX vs. DFJSX - Sharpe Ratio Comparison

The current IASMX Sharpe Ratio is 1.10, which is lower than the DFJSX Sharpe Ratio of 1.75. The chart below compares the historical Sharpe Ratios of IASMX and DFJSX, 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

IASMX vs. DFJSX - Drawdown Comparison

The maximum IASMX drawdown since its inception was -76.53%, roughly equal to the maximum DFJSX drawdown of -76.17%. Use the drawdown chart below to compare losses from any high point for IASMX and DFJSX.

Drawdown Indicators

	IASMX	DFJSX	Difference
Max Drawdown Largest peak-to-trough decline	-76.53%	-76.17%	-0.36%
Max Drawdown (1Y) Largest decline over 1 year	-10.00%	-12.53%	+2.53%
Max Drawdown (3Y) Largest decline over 3 years	-19.62%	-13.31%	-6.31%
Max Drawdown (5Y) Largest decline over 5 years	-44.17%	-31.39%	-12.78%
Max Drawdown (10Y) Largest decline over 10 years	-52.51%	-40.32%	-12.19%
Current Drawdown Current decline from peak	-6.07%	-1.17%	-4.90%
Average Drawdown Average peak-to-trough decline	-33.07%	-29.98%	-3.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.72%	4.15%	-0.43%

Volatility

IASMX vs. DFJSX - Volatility Comparison

Guinness Atkinson Asia Focus Fund (IASMX) has a higher volatility of 6.87% compared to DFA Japanese Small Company Portfolio (DFJSX) at 6.44%. This indicates that IASMX's price experiences larger fluctuations and is considered to be riskier than DFJSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IASMX	DFJSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.87%	6.44%	+0.43%
Volatility (6M) Calculated over the trailing 6-month period	16.03%	14.01%	+2.02%
Volatility (1Y) Calculated over the trailing 1-year period	19.29%	17.36%	+1.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.63%	16.41%	+5.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.89%	16.64%	+4.25%

IASMX vs. DFJSX - Expense Ratio Comparison

IASMX has a 1.98% expense ratio, which is higher than DFJSX's 0.42% expense ratio.

Dividends

IASMX vs. DFJSX - Dividend Comparison

IASMX's dividend yield for the trailing twelve months is around 6.11%, more than DFJSX's 3.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFJSX DFA Japanese Small Company Portfolio	3.00%	3.49%	3.16%	6.45%	5.44%	5.26%	2.14%	3.98%	7.50%	2.41%	1.97%	1.38%
IASMX Guinness Atkinson Asia Focus Fund	6.11%	6.92%	1.51%	1.16%	3.40%	9.14%	5.78%	6.61%	12.82%	0.90%	1.44%	1.18%

Frequently Asked Questions

Can I hold both IASMX and DFJSX in my portfolio?

IASMX and DFJSX have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IASMX or DFJSX?

IASMX has higher volatility (6.87%) compared to DFJSX (6.44%). In terms of maximum drawdown, IASMX dropped -76.53% vs DFJSX's -76.17%.

Which has better risk-adjusted returns?

DFJSX currently has the higher Sharpe Ratio (1.75 vs 1.10), 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.