TWSAX vs. QBDSX

Last updated Aug 2, 2026

TWSAX (American Century Strategic Allocation: Aggressive Fund) and QBDSX (Quantified Managed Income Fund) are both Diversified Portfolio funds. Over the past 10 years, TWSAX returned 9.91%/yr vs 0.52%/yr for QBDSX. Their 0.44 correlation means their historical movements had little consistent relationship. TWSAX charges 0.63%/yr vs 1.31%/yr for QBDSX.

Performance

TWSAX vs. QBDSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Strategic Allocation: Aggressive Fund (TWSAX) and Quantified Managed Income Fund (QBDSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TWSAX achieves a 7.39% return, which is significantly higher than QBDSX's -0.25% return. Over the past 10 years, TWSAX has outperformed QBDSX with an annualized return of 9.91%, while QBDSX has yielded a comparatively lower 0.52% annualized return.

TWSAX

• 1D: 1.33%
• 1M: -0.44%
• 6M: 4.45%
• YTD: 7.39%
• 1Y: 15.35%
• 3Y*: 13.22%
• 5Y*: 7.09%
• 10Y*: 9.91%
• ALL TIME*: 8.15%

QBDSX

• 1D: 0.00%
• 1M: 0.13%
• 6M: -0.88%
• YTD: -0.25%
• 1Y: 0.15%
• 3Y*: 2.24%
• 5Y*: 0.70%
• 10Y*: 0.52%
• ALL TIME*: 0.75%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
QBDSX Quantified Managed Income Fund	$0.00	$0.00	$0.00
TWSAX American Century Strategic Allocation: Aggressive Fund	$0.00	$0.00	$0.00

TWSAX vs. QBDSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TWSAX American Century Strategic Allocation: Aggressive Fund	7.39%	15.87%	13.12%	15.28%	-15.47%	14.92%	18.37%	24.38%	-6.59%	19.22%
QBDSX Quantified Managed Income Fund	-0.25%	5.11%	1.02%	2.25%	-4.09%	-0.66%	-9.22%	10.50%	-3.17%	5.05%

Correlation

The correlation between TWSAX and QBDSX is 0.64, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.64
Correlation (3Y) Balances recent behavior with more history.	0.58
Correlation (5Y) Shows whether the relationship held over a longer period.	0.45
Correlation (10Y) Provides a long-term view across more market conditions.	0.50
Correlation (All Time) Calculated using the full available price history since Jan 2, 2014	0.44

Over the past year, TWSAX and QBDSX have become more correlated (0.64) than their long-term average of 0.44, meaning their price movements have been converging.

Return for Risk

TWSAX vs. QBDSX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

TWSAX

TWSAX Risk / Return Rank: 42
TWSAX Sharpe Ratio Rank: 42
TWSAX Sortino Ratio Rank: 42
TWSAX Omega Ratio Rank: 40
TWSAX Calmar Ratio Rank: 39
TWSAX Martin Ratio Rank: 48

QBDSX

QBDSX Risk / Return Rank: 4
QBDSX Sharpe Ratio Rank: 4
QBDSX Sortino Ratio Rank: 4
QBDSX Omega Ratio Rank: 4
QBDSX Calmar Ratio Rank: 4
QBDSX Martin Ratio Rank: 4

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

TWSAX vs. QBDSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Strategic Allocation: Aggressive Fund (TWSAX) and Quantified Managed Income Fund (QBDSX). 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.

	TWSAX	QBDSX	Difference
Sharpe ratio: Return per unit of total volatility	1.27	-0.03	+1.30
Sortino ratio: Return per unit of downside risk	1.84	-0.01	+1.86
Omega ratio: Gain probability vs. loss probability	1.23	1.00	+0.23
Calmar ratio: Return relative to maximum drawdown	1.68	-0.03	+1.72
Martin ratio: Return relative to average drawdown	6.98	-0.07	+7.04

TWSAX vs. QBDSX - Sharpe Ratio Comparison

The current TWSAX Sharpe Ratio is 1.27, which is higher than the QBDSX Sharpe Ratio of -0.03. The chart below compares the historical Sharpe Ratios of TWSAX and QBDSX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

TWSAX vs. QBDSX - Drawdown Comparison

The maximum TWSAX drawdown since its inception was -46.25%, which is greater than QBDSX's maximum drawdown of -18.38%. Use the drawdown chart below to compare losses from any high point for TWSAX and QBDSX.

Drawdown Indicators

	TWSAX	QBDSX	Difference
Max Drawdown Largest peak-to-trough decline	-46.25%	-18.38%	-27.87%
Max Drawdown (1Y) Largest decline over 1 year	-8.27%	-3.09%	-5.18%
Max Drawdown (3Y) Largest decline over 3 years	-14.75%	-3.76%	-10.99%
Max Drawdown (5Y) Largest decline over 5 years	-23.64%	-7.40%	-16.24%
Max Drawdown (10Y) Largest decline over 10 years	-30.07%	-18.38%	-11.69%
Current Drawdown Current decline from peak	-1.19%	-8.29%	+7.10%
Average Drawdown Average peak-to-trough decline	-7.75%	-6.86%	-0.89%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.99%	1.43%	+0.56%

Volatility

TWSAX vs. QBDSX - Volatility Comparison

American Century Strategic Allocation: Aggressive Fund (TWSAX) has a higher volatility of 2.79% compared to Quantified Managed Income Fund (QBDSX) at 0.75%. This indicates that TWSAX's price experiences larger fluctuations and is considered to be riskier than QBDSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TWSAX	QBDSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.79%	0.75%	+2.04%
Volatility (6M) Calculated over the trailing 6-month period	9.03%	2.38%	+6.65%
Volatility (1Y) Calculated over the trailing 1-year period	10.96%	3.53%	+7.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.53%	4.31%	+9.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.03%	5.24%	+8.79%

TWSAX vs. QBDSX - Expense Ratio Comparison

TWSAX has a 0.63% expense ratio, which is lower than QBDSX's 1.31% expense ratio.

Dividends

TWSAX vs. QBDSX - Dividend Comparison

TWSAX's dividend yield for the trailing twelve months is around 6.50%, more than QBDSX's 4.49% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
QBDSX Quantified Managed Income Fund	4.49%	4.47%	3.98%	4.51%	0.54%	0.71%	0.87%	2.26%	2.04%	2.51%	1.00%	3.89%
TWSAX American Century Strategic Allocation: Aggressive Fund	6.50%	6.98%	6.92%	2.38%	5.51%	13.14%	6.54%	15.43%	14.22%	9.74%	1.54%	7.60%

Frequently Asked Questions

Can I hold both TWSAX and QBDSX in my portfolio?

TWSAX and QBDSX have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TWSAX or QBDSX?

TWSAX has higher volatility (2.79%) compared to QBDSX (0.75%). In terms of maximum drawdown, TWSAX dropped -46.25% vs QBDSX's -18.38%.

Which has better risk-adjusted returns?

TWSAX currently has the higher Sharpe Ratio (1.27 vs -0.03), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.