JNBAX vs. GIMFX

Last updated Jun 23, 2026

JNBAX (JPMorgan Income Builder Fund Class A) and GIMFX (GMO Implementation Fund) are both Global Allocation funds. Over the past 10 years, JNBAX returned 6.09%/yr vs 7.15%/yr for GIMFX. A 0.78 correlation means they provide meaningful diversification when combined. JNBAX charges 0.75%/yr vs 0.02%/yr for GIMFX.

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.

Returns By Period

In the year-to-date period, JNBAX achieves a 6.37% return, which is significantly lower than GIMFX's 12.40% return. Over the past 10 years, JNBAX has underperformed GIMFX with an annualized return of 6.09%, while GIMFX has yielded a comparatively higher 7.15% annualized return.

JNBAX

• 1D: 0.64%
• 1M: 1.58%
• YTD: 6.37%
• 6M: 6.45%
• 1Y: 15.02%
• 3Y*: 10.60%
• 5Y*: 4.68%
• 10Y*: 6.09%

GIMFX

• 1D: 0.12%
• 1M: 0.47%
• YTD: 12.40%
• 6M: 13.14%
• 1Y: 30.01%
• 3Y*: 16.20%
• 5Y*: 9.87%
• 10Y*: 7.15%

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

JNBAX vs. GIMFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
JNBAX JPMorgan Income Builder Fund Class A	6.37%	12.74%	7.22%	9.20%	-12.97%	8.82%	6.09%	14.81%	-4.46%	11.85%
GIMFX GMO Implementation Fund	12.40%	25.37%	2.67%	14.75%	-1.24%	4.05%	-7.25%	13.24%	-5.58%	14.09%

Correlation

The correlation between JNBAX and GIMFX is 0.79, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.79
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.71
Correlation (10Y) Calculated over the trailing 10-year period	0.73
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013	0.78

The correlation between JNBAX and GIMFX has been stable across timeframes, ranging from 0.70 to 0.79 - a consistent structural relationship.

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: 64
JNBAX Sharpe Ratio Rank: 64
JNBAX Sortino Ratio Rank: 63
JNBAX Omega Ratio Rank: 71
JNBAX Calmar Ratio Rank: 51
JNBAX Martin Ratio Rank: 69

GIMFX

GIMFX Risk / Return Rank: 94
GIMFX Sharpe Ratio Rank: 98
GIMFX Sortino Ratio Rank: 96
GIMFX Omega Ratio Rank: 94
GIMFX Calmar Ratio Rank: 92
GIMFX Martin Ratio Rank: 92

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.

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.

	JNBAX	GIMFX	Difference
Sharpe ratio: Return per unit of total volatility	2.15	3.61	-1.46
Sortino ratio: Return per unit of downside risk	3.02	5.08	-2.06
Omega ratio: Gain probability vs. loss probability	1.43	1.72	-0.29
Calmar ratio: Return relative to maximum drawdown	2.63	4.54	-1.91
Martin ratio: Return relative to average drawdown	12.47	17.34	-4.87

JNBAX vs. GIMFX - Sharpe Ratio Comparison

The current JNBAX Sharpe Ratio is 2.15, which is lower than the GIMFX Sharpe Ratio of 3.61. The chart below compares the historical Sharpe Ratios of JNBAX and GIMFX, 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

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	-5.74%	-6.53%	+0.79%
Max Drawdown (3Y) Largest decline over 3 years	-7.93%	-8.02%	+0.09%
Max Drawdown (5Y) Largest decline over 5 years	-19.26%	-13.20%	-6.06%
Max Drawdown (10Y) Largest decline over 10 years	-23.56%	-25.87%	+2.31%
Current Drawdown Current decline from peak	-0.36%	-1.54%	+1.18%
Average Drawdown Average peak-to-trough decline	-4.87%	-4.28%	-0.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.21%	1.71%	-0.50%

Volatility

JNBAX vs. GIMFX - Volatility Comparison

JPMorgan Income Builder Fund Class A (JNBAX) has a higher volatility of 3.17% compared to GMO Implementation Fund (GIMFX) at 2.74%. This indicates that JNBAX's price experiences larger fluctuations and is considered to be riskier 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	3.17%	2.74%	+0.43%
Volatility (6M) Calculated over the trailing 6-month period	6.10%	6.58%	-0.48%
Volatility (1Y) Calculated over the trailing 1-year period	7.01%	8.21%	-1.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.90%	8.62%	-0.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.92%	8.99%	-1.07%

JNBAX vs. GIMFX - Expense Ratio Comparison

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

Dividends

JNBAX vs. GIMFX - Dividend Comparison

JNBAX's dividend yield for the trailing twelve months is around 4.99%, more than GIMFX's 3.80% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GIMFX GMO Implementation Fund	3.80%	4.28%	3.39%	5.93%	3.59%	3.28%	2.25%	3.99%	4.59%	2.95%	1.98%	0.00%
JNBAX JPMorgan Income Builder Fund Class A	4.99%	5.04%	5.77%	4.94%	4.46%	8.18%	3.34%	4.03%	4.41%	3.74%	4.27%	4.06%

Frequently Asked Questions

Can I hold both JNBAX and GIMFX in my portfolio?

JNBAX and GIMFX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, JNBAX or GIMFX?

JNBAX has higher volatility (3.17%) compared to GIMFX (2.74%). In terms of maximum drawdown, JNBAX dropped -37.41% vs GIMFX's -25.87%.

Which has better risk-adjusted returns?

GIMFX currently has the higher Sharpe Ratio (3.61 vs 2.15), 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.