BFK vs. FZROX

Last updated Jun 6, 2026

BFK (BlackRock Municipal Income Trust) is a stock, while FZROX (Fidelity ZERO Total Market Index Fund) is Large Cap Blend Equities fund managed by Fidelity. At a 0.22 correlation, their price movements are largely independent.

Performance

BFK vs. FZROX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Municipal Income Trust (BFK) and Fidelity ZERO Total Market Index Fund (FZROX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BFK

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

FZROX

• 1D: 0.49%
• 1M: 3.12%
• YTD: 11.72%
• 6M: 11.25%
• 1Y: 29.38%
• 3Y*: 22.49%
• 5Y*: 13.04%
• 10Y*: —

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

BFK vs. FZROX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BFK BlackRock Municipal Income Trust	1.60%	8.12%	3.80%	4.22%	-31.90%	5.20%	14.61%	22.06%	-4.77%
FZROX Fidelity ZERO Total Market Index Fund	11.72%	17.23%	23.94%	26.20%	-19.21%	26.00%	20.51%	31.15%	-12.72%

Correlation

The correlation between BFK and FZROX is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.18
Correlation (3Y) Calculated over the trailing 3-year period	0.28
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (All Time) Calculated using the full available price history since Aug 17, 2018	0.22

The correlation between BFK and FZROX shifts across timeframes, from 0.18 (1 year) to 0.28 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

BFK vs. FZROX — Risk / Return Rank

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

FZROX

FZROX Risk / Return Rank: 71
FZROX Sharpe Ratio Rank: 70
FZROX Sortino Ratio Rank: 63
FZROX Omega Ratio Rank: 63
FZROX Calmar Ratio Rank: 75
FZROX Martin Ratio Rank: 84

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.

BFK vs. FZROX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Municipal Income Trust (BFK) and Fidelity ZERO Total Market Index Fund (FZROX). 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

	BFK	FZROX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.36	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.75	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.73	—

Drawdowns

Drawdown Indicators

	BFK	FZROX	Difference
Max Drawdown Largest peak-to-trough decline	—	-34.96%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-8.89%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-19.38%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-25.12%	—
Current Drawdown Current decline from peak	—	-0.26%	—
Average Drawdown Average peak-to-trough decline	—	-5.51%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	1.92%	—

Volatility

Volatility by Period

	BFK	FZROX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	3.04%	—
Volatility (6M) Calculated over the trailing 6-month period	—	9.24%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	12.24%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	17.44%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	20.12%	—

Dividends

BFK vs. FZROX - Dividend Comparison

BFK's dividend yield for the trailing twelve months is around 4.46%, more than FZROX's 0.92% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BFK BlackRock Municipal Income Trust	4.46%	5.98%	6.09%	3.95%	5.84%	4.52%	4.33%	4.74%	5.87%	5.63%	6.31%	6.11%
FZROX Fidelity ZERO Total Market Index Fund	0.92%	1.02%	1.16%	1.36%	1.57%	1.25%	1.27%	1.51%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BFK and FZROX in my portfolio?

BFK and FZROX have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.