TMB vs. MUSI
TMB (Thornburg Multi Sector Bond ETF) and MUSI (American Century Multisector Income ETF) are both Multisector Bonds funds. Both are actively managed. Their correlation of 0.83 means they have usually moved in the same direction. TMB charges 0.55%/yr vs 0.36%/yr for MUSI.
Performance
TMB vs. MUSI - Performance Comparison
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Returns By Period
TMB
- 1D
- 0.17%
- 1M
- -0.11%
- 6M
- —
- YTD
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- —
MUSI
- 1D
- 0.01%
- 1M
- -0.39%
- 6M
- 0.44%
- YTD
- 0.80%
- 1Y
- 3.70%
- 3Y*
- 6.39%
- 5Y*
- 2.13%
- 10Y*
- —
- ALL TIME*
- 2.13%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $1.39M | $1.15M | $985.83K | |
| $824.79K | $1.04M | $1.82M |
TMB vs. MUSI - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
TMB Thornburg Multi Sector Bond ETF | 0.63% |
MUSI American Century Multisector Income ETF | 0.54% |
Correlation
The correlation between TMB and MUSI is 0.83, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since May 26, 2026 | 0.83 |
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Return for Risk
TMB vs. MUSI — Risk / Return Rank
TMB
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
MUSI
TMB vs. MUSI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Thornburg Multi Sector Bond ETF (TMB) and American Century Multisector Income ETF (MUSI). 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.
| TMB | MUSI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.19 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 1.34 | — |
| Martin ratioReturn relative to average drawdown | — | 4.21 | — |
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Drawdowns
TMB vs. MUSI - Drawdown Comparison
The maximum TMB drawdown since its inception was -0.91%, smaller than the maximum MUSI drawdown of -13.91%. Use the drawdown chart below to compare losses from any high point for TMB and MUSI.
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Drawdown Indicators
| TMB | MUSI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.91% | -13.91% | +13.00% |
Max Drawdown (1Y)Largest decline over 1 year | — | -2.78% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -3.59% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -13.91% | — |
Current DrawdownCurrent decline from peak | -0.30% | -0.94% | +0.64% |
Average DrawdownAverage peak-to-trough decline | -0.36% | -4.11% | +3.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.88% | — |
Volatility
TMB vs. MUSI - Volatility Comparison
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Volatility by Period
| TMB | MUSI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 1.03% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 2.88% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 3.20% | 3.41% | -0.21% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.20% | 4.85% | -1.65% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.20% | 4.81% | -1.61% |
TMB vs. MUSI - Expense Ratio Comparison
TMB has a 0.55% expense ratio, which is higher than MUSI's 0.36% expense ratio.
Dividends
TMB vs. MUSI - Dividend Comparison
TMB's dividend yield for the trailing twelve months is around 1.12%, less than MUSI's 4.97% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
MUSI American Century Multisector Income ETF | 4.97% | 5.74% | 6.00% | 5.20% | 4.02% | 1.62% |
TMB Thornburg Multi Sector Bond ETF | 1.12% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
TMB and MUSI have a correlation of 0.83, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, MUSI is cheaper at 0.36% per year. The better choice depends on whether you care most about return, fees, risk, or income.
MUSI is cheaper with a 0.36% expense ratio, compared with 0.55% for TMB.
MUSI has the higher dividend yield at 4.97%, compared with 1.12% for TMB.
They also come from different issuers: Thornburg and American Century. Their fees differ too: 0.55% for TMB and 0.36% for MUSI.
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