JMMF vs. MMK

Last updated Aug 2, 2026

JMMF (JPMorgan 100% U.S. Treasury Securities Money Market ETF) and MMK (State Street Prime Money Market ETF) are both Money Market funds. Both are actively managed. Their 0.49 correlation means their historical movements had little consistent relationship. JMMF charges 0.16%/yr vs 0.18%/yr for MMK.

Performance

JMMF vs. MMK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in JPMorgan 100% U.S. Treasury Securities Money Market ETF (JMMF) and State Street Prime Money Market ETF (MMK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

JMMF

• 1D: 0.05%
• 1M: 0.29%
• 6M: 1.81%
• YTD: 2.03%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

MMK

• 1D: 0.04%
• 1M: 0.29%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

*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)
JMMF JPMorgan 100% U.S. Treasury Securities Money Market ETF	$727.29K	$634.56K	$536.73K
MMK State Street Prime Money Market ETF	$172.00K	$210.46K	$196.21K

JMMF vs. MMK - Yearly Performance Comparison

	2026 (YTD)
JMMF JPMorgan 100% U.S. Treasury Securities Money Market ETF	1.71%
MMK State Street Prime Money Market ETF	1.70%

Correlation

The correlation between JMMF and MMK is 0.49, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (All Time) Calculated using the full available price history since Feb 12, 2026	0.49

Return for Risk

JMMF vs. MMK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for JPMorgan 100% U.S. Treasury Securities Money Market ETF (JMMF) and State Street Prime Money Market ETF (MMK). 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.

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

Drawdowns

JMMF vs. MMK - Drawdown Comparison

The maximum JMMF drawdown since its inception was -0.14%, which is greater than MMK's maximum drawdown of -0.01%. Use the drawdown chart below to compare losses from any high point for JMMF and MMK.

Drawdown Indicators

	JMMF	MMK	Difference
Max Drawdown Largest peak-to-trough decline	-0.14%	-0.01%	-0.13%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.01%	0.00%	-0.01%

Volatility

Volatility by Period

	JMMF	MMK	Difference
Volatility (1Y) Calculated over the trailing 1-year period	0.50%	0.18%	+0.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.50%	0.18%	+0.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.50%	0.18%	+0.32%

JMMF vs. MMK - Expense Ratio Comparison

JMMF has a 0.16% expense ratio, which is lower than MMK's 0.18% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

JMMF vs. MMK - Dividend Comparison

JMMF's dividend yield for the trailing twelve months is around 2.20%, more than MMK's 1.37% yield.

Position	TTM	2025
JMMF JPMorgan 100% U.S. Treasury Securities Money Market ETF	2.20%	0.20%
MMK State Street Prime Money Market ETF	1.37%	0.00%

Frequently Asked Questions

Can I hold both JMMF and MMK in my portfolio?

JMMF and MMK have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, JMMF or MMK?

On fees, JMMF is cheaper at 0.16% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, JMMF or MMK?

JMMF is cheaper with a 0.16% expense ratio, compared with 0.18% for MMK.

Which ETF pays a higher dividend yield, JMMF or MMK?

JMMF has the higher dividend yield at 2.20%, compared with 1.37% for MMK.

What is the main difference between JMMF and MMK?

They also come from different issuers: JPMorgan and State Street. Their fees differ too: 0.16% for JMMF and 0.18% for MMK.