TAXX vs. IBMM

Last updated Apr 2, 2026

Compare and contrast key facts about Bondbloxx IR+M Tax-Aware Short Duration ETF (TAXX) and iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM).

TAXX and IBMM are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. TAXX is an actively managed fund by BondBloxx. It was launched on Mar 14, 2024. IBMM is a passively managed fund by iShares that tracks the performance of the S&P AMT-Free Municipal Series Dec 2024 Index. It was launched on Mar 20, 2018.

Performance

TAXX vs. IBMM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bondbloxx IR+M Tax-Aware Short Duration ETF (TAXX) and iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM). The values are adjusted to include any dividend payments, if applicable.

TAXX vs. IBMM - Yearly Performance Comparison

	2026 (YTD)
TAXX Bondbloxx IR+M Tax-Aware Short Duration ETF	-0.26%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%

Returns By Period

TAXX

• 1D: 0.09%
• 1M: -0.60%
• YTD: 0.43%
• 6M: 1.20%
• 1Y: 3.79%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBMM

• 1D: 0.00%
• 1M: 0.00%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

TAXX vs. IBMM - Expense Ratio Comparison

TAXX has a 0.35% expense ratio, which is higher than IBMM's 0.18% expense ratio.

TAXX

Bondbloxx IR+M Tax-Aware Short Duration ETF

IBMM

iShares iBonds Dec 2024 Term Muni Bond ETF

Return for Risk

TAXX vs. IBMM — Risk / Return Rank

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

TAXX

TAXX Risk / Return Rank: 93
TAXX Sharpe Ratio Rank: 89
TAXX Sortino Ratio Rank: 92
TAXX Omega Ratio Rank: 96
TAXX Calmar Ratio Rank: 95
TAXX 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.

TAXX vs. IBMM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bondbloxx IR+M Tax-Aware Short Duration ETF (TAXX) and iShares iBonds Dec 2024 Term Muni Bond ETF (IBMM). 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.

	TAXX	IBMM	Difference
Sharpe ratio Return per unit of total volatility	2.00	—	—
Sortino ratio Return per unit of downside risk	2.77	—	—
Omega ratio Gain probability vs. loss probability	1.51	—	—
Calmar ratio Return relative to maximum drawdown	4.33	—	—
Martin ratio Return relative to average drawdown	13.71	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	TAXX	IBMM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.00	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.56	—	—

Dividends

TAXX vs. IBMM - Dividend Comparison

TAXX's dividend yield for the trailing twelve months is around 3.62%, while IBMM has not paid dividends to shareholders.

	TTM	2025	2024
TAXX Bondbloxx IR+M Tax-Aware Short Duration ETF	3.62%	3.72%	2.70%
IBMM iShares iBonds Dec 2024 Term Muni Bond ETF	0.00%	0.00%	0.00%

Drawdowns

TAXX vs. IBMM - Drawdown Comparison

The maximum TAXX drawdown since its inception was -0.91%, which is greater than IBMM's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for TAXX and IBMM.

Drawdown Indicators

	TAXX	IBMM	Difference
Max Drawdown Largest peak-to-trough decline	-0.91%	0.00%	-0.91%
Max Drawdown (1Y) Largest decline over 1 year	-0.91%	—	—
Current Drawdown Current decline from peak	-0.64%	0.00%	-0.64%
Average Drawdown Average peak-to-trough decline	-0.15%	0.00%	-0.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.29%	—	—

Volatility

Volatility by Period

	TAXX	IBMM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.43%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.89%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	1.91%	0.00%	+1.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.62%	0.00%	+1.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.62%	0.00%	+1.62%