PRVBX vs. NEFOX

Last updated Aug 1, 2026

PRVBX (Permanent Portfolio Versatile Bond Portfolio) and NEFOX (Natixis Funds Trust II Oakmark Fund) are both mutual funds - PRVBX is a Short-Term Bond fund managed by Permanent Portfolio, while NEFOX is a Large Cap Value Equities fund managed by Natixis. Over the past 10 years, PRVBX returned 4.22%/yr vs 13.84%/yr for NEFOX. Their 0.01 correlation means their historical movements had little consistent relationship. PRVBX charges 0.64%/yr vs 1.05%/yr for NEFOX.

Performance

PRVBX vs. NEFOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Permanent Portfolio Versatile Bond Portfolio (PRVBX) and Natixis Funds Trust II Oakmark Fund (NEFOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRVBX achieves a 1.22% return, which is significantly lower than NEFOX's 6.49% return. Over the past 10 years, PRVBX has underperformed NEFOX with an annualized return of 4.22%, while NEFOX has yielded a comparatively higher 13.84% annualized return.

PRVBX

• 1D: 0.03%
• 1M: -0.02%
• 6M: 0.54%
• YTD: 1.22%
• 1Y: 3.28%
• 3Y*: 5.31%
• 5Y*: 2.53%
• 10Y*: 4.22%
• ALL TIME*: 3.67%

NEFOX

• 1D: -0.34%
• 1M: 3.21%
• 6M: 6.38%
• YTD: 6.49%
• 1Y: 14.77%
• 3Y*: 14.34%
• 5Y*: 11.25%
• 10Y*: 13.84%
• ALL TIME*: 6.31%

*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)
NEFOX Natixis Funds Trust II Oakmark Fund	$0.00	$0.00	$0.00
PRVBX Permanent Portfolio Versatile Bond Portfolio	$0.00	$0.00	$0.00

PRVBX vs. NEFOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRVBX Permanent Portfolio Versatile Bond Portfolio	1.22%	5.66%	5.78%	6.91%	-5.91%	2.93%	9.88%	9.29%	2.01%	0.69%
NEFOX Natixis Funds Trust II Oakmark Fund	6.49%	14.77%	15.71%	30.96%	-13.02%	33.94%	13.08%	26.76%	-13.01%	20.76%

Correlation

The correlation between PRVBX and NEFOX is 0.24, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.24
Correlation (3Y) Balances recent behavior with more history.	0.28
Correlation (5Y) Shows whether the relationship held over a longer period.	0.27
Correlation (10Y) Provides a long-term view across more market conditions.	0.15
Correlation (All Time) Calculated using the full available price history since Jan 2, 1992	0.01

Over the past year, PRVBX and NEFOX have become more correlated (0.24) than their long-term average of 0.01, meaning their price movements have been converging.

Return for Risk

PRVBX vs. NEFOX — Risk / Return Rank

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

PRVBX

PRVBX Risk / Return Rank: 78
PRVBX Sharpe Ratio Rank: 82
PRVBX Sortino Ratio Rank: 83
PRVBX Omega Ratio Rank: 80
PRVBX Calmar Ratio Rank: 73
PRVBX Martin Ratio Rank: 74

NEFOX

NEFOX Risk / Return Rank: 44
NEFOX Sharpe Ratio Rank: 37
NEFOX Sortino Ratio Rank: 39
NEFOX Omega Ratio Rank: 34
NEFOX Calmar Ratio Rank: 69
NEFOX Martin Ratio Rank: 39

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.

PRVBX vs. NEFOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Permanent Portfolio Versatile Bond Portfolio (PRVBX) and Natixis Funds Trust II Oakmark Fund (NEFOX). 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.

	PRVBX	NEFOX	Difference
Sharpe ratio: Return per unit of total volatility	1.94	1.13	+0.81
Sortino ratio: Return per unit of downside risk	2.91	1.72	+1.19
Omega ratio: Gain probability vs. loss probability	1.37	1.20	+0.17
Calmar ratio: Return relative to maximum drawdown	2.36	2.26	+0.10
Martin ratio: Return relative to average drawdown	8.97	5.63	+3.34

PRVBX vs. NEFOX - Sharpe Ratio Comparison

The current PRVBX Sharpe Ratio is 1.94, which is higher than the NEFOX Sharpe Ratio of 1.13. The chart below compares the historical Sharpe Ratios of PRVBX and NEFOX, 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

PRVBX vs. NEFOX - Drawdown Comparison

The maximum PRVBX drawdown since its inception was -16.91%, smaller than the maximum NEFOX drawdown of -62.35%. Use the drawdown chart below to compare losses from any high point for PRVBX and NEFOX.

Drawdown Indicators

	PRVBX	NEFOX	Difference
Max Drawdown Largest peak-to-trough decline	-16.91%	-62.35%	+45.44%
Max Drawdown (1Y) Largest decline over 1 year	-1.51%	-7.07%	+5.56%
Max Drawdown (3Y) Largest decline over 3 years	-1.51%	-17.25%	+15.74%
Max Drawdown (5Y) Largest decline over 5 years	-8.22%	-23.56%	+15.34%
Max Drawdown (10Y) Largest decline over 10 years	-16.91%	-41.01%	+24.10%
Current Drawdown Current decline from peak	-0.23%	-0.46%	+0.23%
Average Drawdown Average peak-to-trough decline	-0.72%	-12.45%	+11.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.40%	2.71%	-2.31%

Volatility

PRVBX vs. NEFOX - Volatility Comparison

The current volatility for Permanent Portfolio Versatile Bond Portfolio (PRVBX) is 0.48%, while Natixis Funds Trust II Oakmark Fund (NEFOX) has a volatility of 4.73%. This indicates that PRVBX experiences smaller price fluctuations and is considered to be less risky than NEFOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRVBX	NEFOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.48%	4.73%	-4.25%
Volatility (6M) Calculated over the trailing 6-month period	1.48%	10.37%	-8.89%
Volatility (1Y) Calculated over the trailing 1-year period	1.84%	14.19%	-12.35%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.37%	19.19%	-16.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.35%	20.76%	-16.41%

PRVBX vs. NEFOX - Expense Ratio Comparison

PRVBX has a 0.64% expense ratio, which is lower than NEFOX's 1.05% expense ratio.

Dividends

PRVBX vs. NEFOX - Dividend Comparison

PRVBX's dividend yield for the trailing twelve months is around 4.13%, less than NEFOX's 9.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NEFOX Natixis Funds Trust II Oakmark Fund	9.52%	7.14%	6.85%	3.62%	17.00%	7.02%	9.21%	9.34%	10.83%	4.19%	3.66%	4.01%
PRVBX Permanent Portfolio Versatile Bond Portfolio	4.13%	4.18%	3.61%	3.16%	1.83%	0.85%	4.73%	2.51%	1.71%	3.30%	3.27%	5.71%

Frequently Asked Questions

Can I hold both PRVBX and NEFOX in my portfolio?

PRVBX and NEFOX have a correlation of 0.24, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRVBX or NEFOX?

NEFOX has higher volatility (4.73%) compared to PRVBX (0.48%). In terms of maximum drawdown, PRVBX dropped -16.91% vs NEFOX's -62.35%.

Which has better risk-adjusted returns?

PRVBX currently has the higher Sharpe Ratio (1.94 vs 1.13), 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.