JNBAX vs. GIMFX

Last updated Apr 1, 2026

Compare and contrast key facts about JPMorgan Income Builder Fund Class A (JNBAX) and GMO Implementation Fund (GIMFX).

JNBAX is a passively managed fund by JPMorgan that tracks the performance of the 60% MSCI World Index (net total return) / 40% Bloomberg U.S. Aggregate Index. It was launched on May 31, 2007. GIMFX is managed by GMO. It was launched on Feb 29, 2012.

Performance

JNBAX vs. GIMFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in JPMorgan Income Builder Fund Class A (JNBAX) and GMO Implementation Fund (GIMFX). The values are adjusted to include any dividend payments, if applicable.

JNBAX vs. GIMFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
JNBAX JPMorgan Income Builder Fund Class A	-1.82%	12.74%	7.22%	9.20%	-12.97%	8.82%	6.09%	14.81%	-4.46%	11.85%
GIMFX GMO Implementation Fund	4.96%	25.37%	2.67%	14.75%	-1.24%	4.05%	-7.25%	13.24%	-5.58%	14.09%

Returns By Period

In the year-to-date period, JNBAX achieves a -1.82% return, which is significantly lower than GIMFX's 4.96% return. Over the past 10 years, JNBAX has underperformed GIMFX with an annualized return of 5.48%, while GIMFX has yielded a comparatively higher 6.46% annualized return.

JNBAX

• 1D: -0.10%
• 1M: -5.74%
• YTD: -1.82%
• 6M: 0.49%
• 1Y: 9.64%
• 3Y*: 7.95%
• 5Y*: 3.70%
• 10Y*: 5.48%

GIMFX

• 1D: 0.25%
• 1M: -5.36%
• YTD: 4.96%
• 6M: 11.65%
• 1Y: 25.30%
• 3Y*: 14.62%
• 5Y*: 8.53%
• 10Y*: 6.46%

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

JNBAX vs. GIMFX - Expense Ratio Comparison

JNBAX has a 0.75% expense ratio, which is higher than GIMFX's 0.02% expense ratio.

JNBAX

JPMorgan Income Builder Fund Class A

GIMFX

GMO Implementation Fund

Return for Risk

JNBAX vs. GIMFX — Risk / Return Rank

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

JNBAX

JNBAX Risk / Return Rank: 68
JNBAX Sharpe Ratio Rank: 70
JNBAX Sortino Ratio Rank: 67
JNBAX Omega Ratio Rank: 69
JNBAX Calmar Ratio Rank: 63
JNBAX Martin Ratio Rank: 71

GIMFX

GIMFX Risk / Return Rank: 96
GIMFX Sharpe Ratio Rank: 98
GIMFX Sortino Ratio Rank: 97
GIMFX Omega Ratio Rank: 96
GIMFX Calmar Ratio Rank: 96
GIMFX Martin Ratio Rank: 96

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.

JNBAX vs. GIMFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for JPMorgan Income Builder Fund Class A (JNBAX) and GMO Implementation Fund (GIMFX). 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.

	JNBAX	GIMFX	Difference
Sharpe ratio Return per unit of total volatility	1.26	2.85	-1.58
Sortino ratio Return per unit of downside risk	1.71	3.70	-1.99
Omega ratio Gain probability vs. loss probability	1.27	1.57	-0.30
Calmar ratio Return relative to maximum drawdown	1.48	3.48	-2.00
Martin ratio Return relative to average drawdown	6.76	13.93	-7.17
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

JNBAX vs. GIMFX - Sharpe Ratio Comparison

The current JNBAX Sharpe Ratio is 1.26, which is lower than the GIMFX Sharpe Ratio of 2.85. The chart below compares the historical Sharpe Ratios of JNBAX and GIMFX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	JNBAX	GIMFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.26	2.85	-1.58
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.48	1.01	-0.53
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.70	0.73	-0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.55	0.64	-0.09

Correlation

The correlation between JNBAX and GIMFX is 0.77, 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

JNBAX vs. GIMFX - Dividend Comparison

JNBAX's dividend yield for the trailing twelve months is around 5.26%, more than GIMFX's 4.07% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
JNBAX JPMorgan Income Builder Fund Class A	5.26%	5.04%	5.77%	4.94%	4.46%	8.18%	3.34%	4.03%	4.41%	3.74%	4.27%	4.06%
GIMFX GMO Implementation Fund	4.07%	4.28%	3.39%	5.93%	3.59%	3.28%	2.25%	3.99%	4.59%	2.95%	1.98%	0.00%

Drawdowns

JNBAX vs. GIMFX - Drawdown Comparison

The maximum JNBAX drawdown since its inception was -37.41%, which is greater than GIMFX's maximum drawdown of -25.87%. Use the drawdown chart below to compare losses from any high point for JNBAX and GIMFX.

Drawdown Indicators

	JNBAX	GIMFX	Difference
Max Drawdown Largest peak-to-trough decline	-37.41%	-25.87%	-11.54%
Max Drawdown (1Y) Largest decline over 1 year	-6.20%	-6.79%	+0.59%
Max Drawdown (5Y) Largest decline over 5 years	-19.26%	-14.02%	-5.24%
Max Drawdown (10Y) Largest decline over 10 years	-23.56%	-25.87%	+2.31%
Current Drawdown Current decline from peak	-5.74%	-5.36%	-0.38%
Average Drawdown Average peak-to-trough decline	-4.92%	-4.33%	-0.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.36%	1.75%	-0.39%

Volatility

JNBAX vs. GIMFX - Volatility Comparison

The current volatility for JPMorgan Income Builder Fund Class A (JNBAX) is 3.18%, while GMO Implementation Fund (GIMFX) has a volatility of 3.70%. This indicates that JNBAX experiences smaller price fluctuations and is considered to be less risky than GIMFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	JNBAX	GIMFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.18%	3.70%	-0.52%
Volatility (6M) Calculated over the trailing 6-month period	4.89%	5.81%	-0.92%
Volatility (1Y) Calculated over the trailing 1-year period	7.76%	8.81%	-1.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.72%	8.46%	-0.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.83%	8.93%	-1.10%