BRAMX vs. FUMBX

Last updated Jun 26, 2026

BRAMX (BlackRock Allocation Target Shares Series M Portfolio) and FUMBX (Fidelity Short-Term Treasury Bond Index Fund) are both Short-Term Bond funds. Over the past 5 years, BRAMX returned 0.35%/yr vs 1.37%/yr for FUMBX. A 0.78 correlation means they provide meaningful diversification when combined. BRAMX charges 0.00%/yr vs 0.03%/yr for FUMBX.

Performance

BRAMX vs. FUMBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Allocation Target Shares Series M Portfolio (BRAMX) and Fidelity Short-Term Treasury Bond Index Fund (FUMBX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BRAMX achieves a 1.08% return, which is significantly higher than FUMBX's 0.09% return.

BRAMX

• 1D: 0.47%
• 1M: 0.83%
• YTD: 1.08%
• 6M: 1.32%
• 1Y: 5.99%
• 3Y*: 4.48%
• 5Y*: 0.35%
• 10Y*: 1.26%

FUMBX

• 1D: 0.10%
• 1M: 0.17%
• YTD: 0.09%
• 6M: 0.44%
• 1Y: 2.79%
• 3Y*: 4.10%
• 5Y*: 1.37%
• 10Y*: —

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

BRAMX vs. FUMBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BRAMX BlackRock Allocation Target Shares Series M Portfolio	1.08%	8.68%	1.47%	4.50%	-12.45%	-1.11%	4.77%	7.12%	0.91%	0.34%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	0.09%	5.83%	3.25%	4.47%	-5.84%	-1.38%	4.22%	4.19%	1.47%	-0.33%

Correlation

The correlation between BRAMX and FUMBX is 0.84, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.84
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017	0.78

The correlation between BRAMX and FUMBX has been stable across timeframes, ranging from 0.78 to 0.84 - a consistent structural relationship.

Return for Risk

BRAMX vs. FUMBX — Risk / Return Rank

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

BRAMX

BRAMX Risk / Return Rank: 38
BRAMX Sharpe Ratio Rank: 39
BRAMX Sortino Ratio Rank: 42
BRAMX Omega Ratio Rank: 40
BRAMX Calmar Ratio Rank: 37
BRAMX Martin Ratio Rank: 32

FUMBX

FUMBX Risk / Return Rank: 32
FUMBX Sharpe Ratio Rank: 31
FUMBX Sortino Ratio Rank: 36
FUMBX Omega Ratio Rank: 36
FUMBX Calmar Ratio Rank: 32
FUMBX Martin Ratio Rank: 27

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.

BRAMX vs. FUMBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Allocation Target Shares Series M Portfolio (BRAMX) and Fidelity Short-Term Treasury Bond Index Fund (FUMBX). 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.

	BRAMX	FUMBX	Difference
Sharpe ratio: Return per unit of total volatility	1.49	1.35	+0.14
Sortino ratio: Return per unit of downside risk	2.23	2.12	+0.12
Omega ratio: Gain probability vs. loss probability	1.28	1.27	0.00
Calmar ratio: Return relative to maximum drawdown	1.98	1.82	+0.15
Martin ratio: Return relative to average drawdown	6.02	5.30	+0.72

BRAMX vs. FUMBX - Sharpe Ratio Comparison

The current BRAMX Sharpe Ratio is 1.49, which is comparable to the FUMBX Sharpe Ratio of 1.35. The chart below compares the historical Sharpe Ratios of BRAMX and FUMBX, 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

BRAMX vs. FUMBX - Drawdown Comparison

The maximum BRAMX drawdown since its inception was -26.88%, which is greater than FUMBX's maximum drawdown of -8.83%. Use the drawdown chart below to compare losses from any high point for BRAMX and FUMBX.

Drawdown Indicators

	BRAMX	FUMBX	Difference
Max Drawdown Largest peak-to-trough decline	-26.88%	-8.83%	-18.05%
Max Drawdown (1Y) Largest decline over 1 year	-3.11%	-1.54%	-1.57%
Max Drawdown (3Y) Largest decline over 3 years	-7.98%	-1.57%	-6.41%
Max Drawdown (5Y) Largest decline over 5 years	-18.23%	-8.60%	-9.63%
Max Drawdown (10Y) Largest decline over 10 years	-18.27%	—	—
Current Drawdown Current decline from peak	-1.13%	-0.87%	-0.26%
Average Drawdown Average peak-to-trough decline	-6.24%	-1.85%	-4.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.02%	0.53%	+0.49%

Volatility

BRAMX vs. FUMBX - Volatility Comparison

BlackRock Allocation Target Shares Series M Portfolio (BRAMX) has a higher volatility of 1.38% compared to Fidelity Short-Term Treasury Bond Index Fund (FUMBX) at 0.70%. This indicates that BRAMX's price experiences larger fluctuations and is considered to be riskier than FUMBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BRAMX	FUMBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.38%	0.70%	+0.68%
Volatility (6M) Calculated over the trailing 6-month period	3.18%	1.56%	+1.62%
Volatility (1Y) Calculated over the trailing 1-year period	4.14%	2.08%	+2.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.36%	2.93%	+3.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.84%	2.49%	+2.35%

BRAMX vs. FUMBX - Expense Ratio Comparison

BRAMX has a 0.00% expense ratio, which is lower than FUMBX's 0.03% 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

BRAMX vs. FUMBX - Dividend Comparison

BRAMX's dividend yield for the trailing twelve months is around 4.52%, more than FUMBX's 3.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRAMX BlackRock Allocation Target Shares Series M Portfolio	4.52%	4.44%	3.78%	2.70%	2.09%	1.76%	2.92%	3.51%	3.19%	2.45%	0.00%	0.48%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	3.76%	3.51%	2.91%	1.64%	0.86%	1.15%	1.41%	1.88%	1.64%	0.34%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BRAMX and FUMBX in my portfolio?

BRAMX and FUMBX have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BRAMX or FUMBX?

BRAMX has higher volatility (1.38%) compared to FUMBX (0.70%). In terms of maximum drawdown, BRAMX dropped -26.88% vs FUMBX's -8.83%.

Which has better risk-adjusted returns?

BRAMX currently has the higher Sharpe Ratio (1.49 vs 1.35), 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.