RMBPX vs. DFJSX

Last updated Apr 1, 2026

Compare and contrast key facts about RMB Japan Fund (RMBPX) and DFA Japanese Small Company Portfolio (DFJSX).

RMBPX is managed by RMB Funds. It was launched on Dec 26, 2017. DFJSX is managed by Dimensional. It was launched on Jan 30, 1986.

Performance

RMBPX vs. DFJSX - Performance Comparison

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

RMBPX vs. DFJSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
RMBPX RMB Japan Fund	0.00%	-0.24%	-14.03%	19.33%	-14.50%	-2.65%	13.06%	17.64%	-17.62%
DFJSX DFA Japanese Small Company Portfolio	3.43%	31.65%	4.35%	17.08%	-11.36%	-0.39%	3.78%	18.23%	-23.04%

Returns By Period

RMBPX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

DFJSX

• 1D: -0.58%
• 1M: -12.02%
• YTD: 3.43%
• 6M: 5.62%
• 1Y: 29.14%
• 3Y*: 16.13%
• 5Y*: 7.40%
• 10Y*: 8.47%

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

RMBPX vs. DFJSX - Expense Ratio Comparison

RMBPX has a 1.30% expense ratio, which is higher than DFJSX's 0.42% expense ratio.

RMBPX

RMB Japan Fund

DFJSX

DFA Japanese Small Company Portfolio

Return for Risk

RMBPX vs. DFJSX — Risk / Return Rank

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

DFJSX

DFJSX Risk / Return Rank: 82
DFJSX Sharpe Ratio Rank: 84
DFJSX Sortino Ratio Rank: 83
DFJSX Omega Ratio Rank: 78
DFJSX Calmar Ratio Rank: 84
DFJSX Martin Ratio Rank: 79

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.

RMBPX vs. DFJSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for RMB Japan Fund (RMBPX) 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	RMBPX	DFJSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.62	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.46	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.51	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.29	—

Correlation

The correlation between RMBPX and DFJSX is 0.78, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

RMBPX vs. DFJSX - Dividend Comparison

RMBPX has not paid dividends to shareholders, while DFJSX's dividend yield for the trailing twelve months is around 3.37%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RMBPX RMB Japan Fund	0.00%	0.00%	3.28%	4.43%	1.04%	8.11%	0.29%	1.15%	0.36%	0.00%	0.00%	0.00%
DFJSX DFA Japanese Small Company Portfolio	3.37%	3.49%	3.16%	6.45%	5.44%	5.26%	2.14%	3.98%	7.50%	2.41%	1.97%	1.38%

Drawdowns

Drawdown Indicators

	RMBPX	DFJSX	Difference
Max Drawdown Largest peak-to-trough decline	—	-76.17%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-12.53%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-31.39%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-40.32%	—
Current Drawdown Current decline from peak	—	-12.02%	—
Average Drawdown Average peak-to-trough decline	—	-30.20%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.44%	—

Volatility

Volatility by Period

	RMBPX	DFJSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	6.94%	—
Volatility (6M) Calculated over the trailing 6-month period	—	12.29%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	17.47%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	16.07%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	16.53%	—