American Century Multisector Income ETF (MUSI) Performance
MUSI total return
Distributions reinvested · as of Oct 23, 2026- YTD
- −0.9% since Dec 31, 2025
- 1 year
- −0.2% total return
- 5 years
- +1.8% a year
- Since first price
- +1.7% a year since 2021
MUSI trailing returns vs AGG, TLT, SPY
| Period | MUSI total return | Price only | U.S. bonds (AGG) | 20+ yr Treasuries (TLT) | S&P 500 (SPY) |
|---|---|---|---|---|---|
| 1 month | +0.4% | −0.0% | +0.9% | +1.5% | −1.0% |
| 3 months | −1.0% | −2.2% | −0.4% | −1.0% | +3.2% |
| 6 months | −1.7% | −4.1% | −1.5% | −3.8% | +7.8% |
| YTD | −0.9% | −4.6% | −1.0% | −3.4% | +12.3% |
| 1 year | −0.2% | −5.3% | −1.1% | −6.9% | +14.4% |
| 3 years | +21.5%+6.7%/yr | +2.4% | +16.6%+5.2%/yr | +9.7%+3.1%/yr | +87.4%+23.3%/yr |
| 5 years | +9.2%+1.8%/yr | −15.5% | −0.8%−0.2%/yr | −32.5%−7.6%/yr | +79.3%+12.4%/yr |
| Since inceptionJul 1, 2021 | +9.5%+1.7%/yr | −15.9% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: MUSI vs AGG
From Jul 1, 2021: MUSI grew to $10,947, AGG to $9,878.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
MUSI returns by calendar year
3 of 4 full years positive. Best 2025 (+8.3%), worst 2022 (−10.3%). 2026 is year to date.
MUSI annual returns table
| Year | MUSI | Largest drop | AGG | TLT | SPY |
|---|---|---|---|---|---|
| 2026YTD | −0.9% | −4.2% | −1.0% | −3.4% | +12.3% |
| 2025 | +8.3% | −3.2% | +7.2% | +4.3% | +17.7% |
| 2024 | +5.1% | −2.6% | +1.3% | −8.1% | +24.9% |
| 2023 | +7.5% | −4.8% | +5.7% | +2.8% | +26.2% |
| 2022 | −10.3% | −13.3% | −13.0% | −31.2% | −18.2% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
MUSI largest drawdowns
Now 2.6% below the high| Peak | Decline | Bottom | Recovered | Fall | Underwater |
|---|---|---|---|---|---|
| Sep 15, 2021 | −13.9% | Oct 20, 2022 | Aug 2, 2024 | 1.1 years | 2.9 years |
Declines from a closing high (distributions reinvested) of 5% or more. Underwater = time from the peak until the old high was regained.
MUSI risk statistics
| Statistic | 3 years | 5 years | Since 2021 |
|---|---|---|---|
| Annualized return | +5.7% | +1.4% | +1.4% |
| Volatility (annualized) | 5.1% | 5.6% | 5.5% |
| Sharpe ratio | 0.27 | -0.38 | -0.36 |
| Sortino ratio | 0.40 | -0.50 | -0.48 |
| Best month | +4.7% | +4.7% | +4.7% |
| Worst month | −3.0% | −3.1% | −3.1% |
| Best 12 months | +13.3% | +13.3% | +13.3% |
| Worst 12 months | −1.2% | −12.6% | −12.6% |
| Positive months | 72% | 58% | 60% |
| Beta vs S&P 500 | 0.23 | 0.24 | — |
| Correlation with S&P 500 | 0.56 | 0.67 | — |
From monthly total returns. Sharpe and Sortino use 1–3 month T-bills (BIL) as the risk-free rate, so they need history from 2007 on.
MUSI rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 52 | −12.6% | +5.2% | +13.3% | 75% |
| 3-year (a year) | 28 | +0.0% | +5.8% | +7.6% | 100% |
| 5-year (a year) | 4 | +1.4% | +1.9% | +2.0% | 100% |
Every holding period starting at a month-end since 2021. Returns for 3 years and longer are annualized.
MUSI performance overview
American Century Multisector Income ETF (MUSI) returned −0.2% over the past year and +1.8% a year over five years, with distributions reinvested. Since its first recorded price in 2021 it has returned +1.7% a year, turning $10,000 into about $10,947. Over the same year U.S. bonds (AGG) returned −1.1%.
The deepest decline was −13.9%, from Sep 15, 2021 to Oct 20, 2022, and it took 1.8 years to get back to the old high. MUSI finished 3 of its 4 full calendar years with a gain; the best year was 2025 (+8.3%) and the worst 2022 (−10.3%). Volatility has been 5.5% a year.
Related: MUSI chart, MUSI dividends, MUSI bond profile. See the MUSI overview for the latest quote and fund facts.
MUSI performance FAQ
What is the MUSI return over the past year?
MUSI returned −0.2% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it fell 5.3%.
What is the average annual return of MUSI?
MUSI has returned +1.8% a year over 5 years, +1.7% a year since July 1, 2021 (total return, distributions reinvested).
How much would $10,000 invested in MUSI be worth?
$10,000 invested in MUSI at its first recorded close on July 1, 2021 would be worth about $10,947 on October 23, 2026 with distributions reinvested.
What was the worst year for MUSI?
The worst calendar year was 2022, with a total return of −10.3%. The best was 2025 at +8.3%.
What is the biggest drawdown of MUSI?
The largest peak-to-trough decline was −13.9% between September 15, 2021 and October 20, 2022. It recovered to the old high on August 2, 2024, 1.8 years after the bottom.
How volatile is MUSI?
Over the past 3 years MUSI had an annualized volatility of 5.1% and a Sharpe ratio of 0.27 (excess return over 1–3 month T-bills per unit of risk).