BREM vs. PMMF

Last updated Jun 4, 2026

BREM (iShares Emerging Markets Bond Active ETF) and PMMF (iShares Prime Money Market ETF) are both exchange-traded funds - BREM is a Emerging Markets Bonds fund actively managed by BlackRock, while PMMF is a Money Market fund actively managed by BlackRock. Both are actively managed. At a 0.10 correlation, their price movements are largely independent. BREM charges 0.50%/yr vs 0.20%/yr for PMMF.

Performance

BREM vs. PMMF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Emerging Markets Bond Active ETF (BREM) and iShares Prime Money Market ETF (PMMF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BREM achieves a 3.26% return, which is significantly higher than PMMF's 1.52% return.

BREM

• 1D: -0.21%
• 1M: 1.16%
• YTD: 3.26%
• 6M: 3.89%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

PMMF

• 1D: 0.01%
• 1M: 0.30%
• YTD: 1.52%
• 6M: 1.82%
• 1Y: 4.00%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BREM vs. PMMF - Yearly Performance Comparison

	2026 (YTD)	2025
BREM iShares Emerging Markets Bond Active ETF	3.26%	2.74%
PMMF iShares Prime Money Market ETF	1.52%	0.82%

Correlation

The correlation between BREM and PMMF is 0.10, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 17, 2025	0.10

Return for Risk

BREM vs. PMMF — Risk / Return Rank

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

PMMF

PMMF Risk / Return Rank: 100
PMMF Sharpe Ratio Rank: 100
PMMF Sortino Ratio Rank: 100
PMMF Omega Ratio Rank: 100
PMMF Calmar Ratio Rank: 100
PMMF Martin Ratio Rank: 100

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.

BREM vs. PMMF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Emerging Markets Bond Active ETF (BREM) and iShares Prime Money Market ETF (PMMF). 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

	BREM	PMMF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	19.72	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.75	11.97	-10.22

Drawdowns

BREM vs. PMMF - Drawdown Comparison

The maximum BREM drawdown since its inception was -4.54%, which is greater than PMMF's maximum drawdown of -0.13%. Use the drawdown chart below to compare losses from any high point for BREM and PMMF.

Drawdown Indicators

	BREM	PMMF	Difference
Max Drawdown Largest peak-to-trough decline	-4.54%	-0.13%	-4.41%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.02%	—
Current Drawdown Current decline from peak	-0.21%	0.00%	-0.21%
Average Drawdown Average peak-to-trough decline	-0.67%	-0.00%	-0.67%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.00%	—

Volatility

Volatility by Period

	BREM	PMMF	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.05%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.12%	—
Volatility (1Y) Calculated over the trailing 1-year period	5.70%	0.20%	+5.50%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.70%	0.34%	+5.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.70%	0.34%	+5.36%

BREM vs. PMMF - Expense Ratio Comparison

BREM has a 0.50% expense ratio, which is higher than PMMF's 0.20% expense ratio.

Dividends

BREM vs. PMMF - Dividend Comparison

BREM's dividend yield for the trailing twelve months is around 3.91%, more than PMMF's 3.83% yield.

Position	TTM	2025
BREM iShares Emerging Markets Bond Active ETF	3.91%	1.19%
PMMF iShares Prime Money Market ETF	3.83%	3.59%

Frequently Asked Questions

Can I hold both BREM and PMMF in my portfolio?

BREM and PMMF have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BREM or PMMF?

On fees, PMMF is cheaper at 0.20% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, BREM or PMMF?

PMMF is cheaper with a 0.20% expense ratio, compared with 0.50% for BREM.

Which ETF pays a higher dividend yield, BREM or PMMF?

BREM has the higher dividend yield at 3.91%, compared with 3.83% for PMMF.

What is the main difference between BREM and PMMF?

BREM is categorized as Emerging Markets Bonds, while PMMF is Money Market. Their fees differ too: 0.50% for BREM and 0.20% for PMMF.