MUSI vs. KORP

Last updated Apr 2, 2026

Compare and contrast key facts about American Century Multisector Income ETF (MUSI) and American Century Diversified Corporate Bond ETF (KORP).

MUSI and KORP are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. MUSI is an actively managed fund by American Century. It was launched on Jun 29, 2021. KORP is an actively managed fund by American Century. It was launched on Jan 11, 2018.

Performance

MUSI vs. KORP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Multisector Income ETF (MUSI) and American Century Diversified Corporate Bond ETF (KORP). The values are adjusted to include any dividend payments, if applicable.

MUSI vs. KORP - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
MUSI American Century Multisector Income ETF	-0.07%	8.32%	5.14%	7.51%	-10.33%	0.58%
KORP American Century Diversified Corporate Bond ETF	-0.33%	8.14%	3.82%	7.40%	-10.04%	-0.35%

Returns By Period

In the year-to-date period, MUSI achieves a -0.07% return, which is significantly higher than KORP's -0.33% return.

MUSI

• 1D: 0.00%
• 1M: -1.43%
• YTD: -0.07%
• 6M: 1.17%
• 1Y: 5.68%
• 3Y*: 5.93%
• 5Y*: —
• 10Y*: —

KORP

• 1D: 0.19%
• 1M: -1.61%
• YTD: -0.33%
• 6M: 0.26%
• 1Y: 4.81%
• 3Y*: 5.28%
• 5Y*: 1.84%
• 10Y*: —

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

MUSI vs. KORP - Expense Ratio Comparison

MUSI has a 0.36% expense ratio, which is higher than KORP's 0.29% expense ratio.

MUSI

American Century Multisector Income ETF

KORP

American Century Diversified Corporate Bond ETF

Return for Risk

MUSI vs. KORP — Risk / Return Rank

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

MUSI

MUSI Risk / Return Rank: 69
MUSI Sharpe Ratio Rank: 70
MUSI Sortino Ratio Rank: 64
MUSI Omega Ratio Rank: 72
MUSI Calmar Ratio Rank: 70
MUSI Martin Ratio Rank: 70

KORP

KORP Risk / Return Rank: 47
KORP Sharpe Ratio Rank: 46
KORP Sortino Ratio Rank: 42
KORP Omega Ratio Rank: 41
KORP Calmar Ratio Rank: 57
KORP Martin Ratio Rank: 48

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.

MUSI vs. KORP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Multisector Income ETF (MUSI) and American Century Diversified Corporate Bond ETF (KORP). 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.

	MUSI	KORP	Difference
Sharpe ratio Return per unit of total volatility	1.31	0.89	+0.42
Sortino ratio Return per unit of downside risk	1.72	1.25	+0.46
Omega ratio Gain probability vs. loss probability	1.28	1.17	+0.11
Calmar ratio Return relative to maximum drawdown	1.96	1.57	+0.39
Martin ratio Return relative to average drawdown	7.89	5.00	+2.88
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MUSI vs. KORP - Sharpe Ratio Comparison

The current MUSI Sharpe Ratio is 1.31, which is higher than the KORP Sharpe Ratio of 0.89. The chart below compares the historical Sharpe Ratios of MUSI and KORP, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	MUSI	KORP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.31	0.89	+0.42
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.35	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.43	0.56	-0.13

Correlation

The correlation between MUSI and KORP is 0.85, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

MUSI vs. KORP - Dividend Comparison

MUSI's dividend yield for the trailing twelve months is around 5.27%, more than KORP's 4.67% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018
MUSI American Century Multisector Income ETF	5.27%	5.74%	6.00%	5.20%	4.02%	1.62%	0.00%	0.00%	0.00%
KORP American Century Diversified Corporate Bond ETF	4.67%	4.98%	5.08%	4.42%	2.89%	1.86%	3.22%	3.20%	2.97%

Drawdowns

MUSI vs. KORP - Drawdown Comparison

The maximum MUSI drawdown since its inception was -13.91%, smaller than the maximum KORP drawdown of -14.90%. Use the drawdown chart below to compare losses from any high point for MUSI and KORP.

Drawdown Indicators

	MUSI	KORP	Difference
Max Drawdown Largest peak-to-trough decline	-13.91%	-14.90%	+0.99%
Max Drawdown (1Y) Largest decline over 1 year	-2.97%	-3.22%	+0.25%
Max Drawdown (5Y) Largest decline over 5 years	—	-14.90%	—
Current Drawdown Current decline from peak	-1.80%	-2.07%	+0.27%
Average Drawdown Average peak-to-trough decline	-4.33%	-3.27%	-1.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.74%	1.01%	-0.27%

Volatility

MUSI vs. KORP - Volatility Comparison

The current volatility for American Century Multisector Income ETF (MUSI) is 1.70%, while American Century Diversified Corporate Bond ETF (KORP) has a volatility of 2.24%. This indicates that MUSI experiences smaller price fluctuations and is considered to be less risky than KORP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MUSI	KORP	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.70%	2.24%	-0.54%
Volatility (6M) Calculated over the trailing 6-month period	2.27%	3.05%	-0.78%
Volatility (1Y) Calculated over the trailing 1-year period	4.35%	5.40%	-1.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.88%	5.31%	-0.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.88%	4.93%	-0.05%