DFJSX vs. PRJPX

Last updated Jun 23, 2026

DFJSX (DFA Japanese Small Company Portfolio) and PRJPX (T. Rowe Price Japan Fund) are both Japan Equities funds. Over the past 10 years, DFJSX returned 9.07%/yr vs 8.08%/yr for PRJPX. Their correlation of 0.80 suggests significant overlap in exposure. DFJSX charges 0.42%/yr vs 1.05%/yr for PRJPX.

Performance

DFJSX vs. PRJPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in DFA Japanese Small Company Portfolio (DFJSX) and T. Rowe Price Japan Fund (PRJPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DFJSX achieves a 15.33% return, which is significantly higher than PRJPX's 13.80% return. Over the past 10 years, DFJSX has outperformed PRJPX with an annualized return of 9.07%, while PRJPX has yielded a comparatively lower 8.08% annualized return.

DFJSX

• 1D: 0.90%
• 1M: 2.00%
• YTD: 15.33%
• 6M: 16.82%
• 1Y: 35.04%
• 3Y*: 20.25%
• 5Y*: 10.33%
• 10Y*: 9.07%

PRJPX

• 1D: 1.92%
• 1M: 3.14%
• YTD: 13.80%
• 6M: 14.56%
• 1Y: 32.83%
• 3Y*: 14.88%
• 5Y*: 2.45%
• 10Y*: 8.08%

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

DFJSX vs. PRJPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DFJSX DFA Japanese Small Company Portfolio	15.33%	31.65%	4.35%	17.08%	-11.36%	-0.39%	3.78%	18.23%	-19.56%	35.69%
PRJPX T. Rowe Price Japan Fund	13.80%	32.21%	6.13%	2.02%	-27.37%	-11.03%	34.60%	27.56%	-12.24%	32.06%

Correlation

The correlation between DFJSX and PRJPX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.88
Correlation (10Y) Calculated over the trailing 10-year period	0.85
Correlation (All Time) Calculated using the full available price history since Jan 2, 1992	0.80

The correlation between DFJSX and PRJPX has been stable across timeframes, ranging from 0.80 to 0.88 - a consistent structural relationship.

Return for Risk

DFJSX vs. PRJPX — Risk / Return Rank

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

DFJSX

DFJSX Risk / Return Rank: 54
DFJSX Sharpe Ratio Rank: 59
DFJSX Sortino Ratio Rank: 59
DFJSX Omega Ratio Rank: 55
DFJSX Calmar Ratio Rank: 56
DFJSX Martin Ratio Rank: 42

PRJPX

PRJPX Risk / Return Rank: 35
PRJPX Sharpe Ratio Rank: 37
PRJPX Sortino Ratio Rank: 36
PRJPX Omega Ratio Rank: 38
PRJPX Calmar Ratio Rank: 34
PRJPX Martin Ratio Rank: 30

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.

DFJSX vs. PRJPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for DFA Japanese Small Company Portfolio (DFJSX) and T. Rowe Price Japan Fund (PRJPX). 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.

	DFJSX	PRJPX	Difference
Sharpe ratio: Return per unit of total volatility	2.09	1.63	+0.45
Sortino ratio: Return per unit of downside risk	2.93	2.34	+0.59
Omega ratio: Gain probability vs. loss probability	1.38	1.30	+0.07
Calmar ratio: Return relative to maximum drawdown	2.73	2.07	+0.66
Martin ratio: Return relative to average drawdown	8.50	6.53	+1.97

DFJSX vs. PRJPX - Sharpe Ratio Comparison

The current DFJSX Sharpe Ratio is 2.09, which is comparable to the PRJPX Sharpe Ratio of 1.63. The chart below compares the historical Sharpe Ratios of DFJSX and PRJPX, 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

DFJSX vs. PRJPX - Drawdown Comparison

The maximum DFJSX drawdown since its inception was -76.17%, which is greater than PRJPX's maximum drawdown of -68.26%. Use the drawdown chart below to compare losses from any high point for DFJSX and PRJPX.

Drawdown Indicators

	DFJSX	PRJPX	Difference
Max Drawdown Largest peak-to-trough decline	-76.17%	-68.26%	-7.91%
Max Drawdown (1Y) Largest decline over 1 year	-12.53%	-15.11%	+2.58%
Max Drawdown (3Y) Largest decline over 3 years	-13.31%	-16.44%	+3.13%
Max Drawdown (5Y) Largest decline over 5 years	-31.39%	-44.42%	+13.03%
Max Drawdown (10Y) Largest decline over 10 years	-40.32%	-45.44%	+5.12%
Current Drawdown Current decline from peak	-1.89%	-0.84%	-1.05%
Average Drawdown Average peak-to-trough decline	-30.06%	-26.71%	-3.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.00%	4.77%	-0.77%

Volatility

DFJSX vs. PRJPX - Volatility Comparison

The current volatility for DFA Japanese Small Company Portfolio (DFJSX) is 4.32%, while T. Rowe Price Japan Fund (PRJPX) has a volatility of 5.06%. This indicates that DFJSX experiences smaller price fluctuations and is considered to be less risky than PRJPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DFJSX	PRJPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.32%	5.06%	-0.74%
Volatility (6M) Calculated over the trailing 6-month period	12.67%	14.83%	-2.16%
Volatility (1Y) Calculated over the trailing 1-year period	16.40%	19.15%	-2.75%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.20%	19.13%	-2.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.59%	17.59%	-1.00%

DFJSX vs. PRJPX - Expense Ratio Comparison

DFJSX has a 0.42% expense ratio, which is lower than PRJPX's 1.05% expense ratio.

Dividends

DFJSX vs. PRJPX - Dividend Comparison

DFJSX's dividend yield for the trailing twelve months is around 3.03%, less than PRJPX's 12.87% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFJSX DFA Japanese Small Company Portfolio	3.03%	3.49%	3.16%	6.45%	5.44%	5.26%	2.14%	3.98%	7.50%	2.41%	1.97%	1.38%
PRJPX T. Rowe Price Japan Fund	12.87%	14.65%	4.82%	1.71%	6.94%	5.42%	2.59%	2.62%	7.56%	0.33%	0.70%	1.05%

Frequently Asked Questions

Can I hold both DFJSX and PRJPX in my portfolio?

DFJSX and PRJPX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DFJSX or PRJPX?

PRJPX has higher volatility (5.06%) compared to DFJSX (4.32%). In terms of maximum drawdown, DFJSX dropped -76.17% vs PRJPX's -68.26%.

Which has better risk-adjusted returns?

DFJSX currently has the higher Sharpe Ratio (2.09 vs 1.63), 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.