AMINX vs. TWEIX

Last updated Aug 1, 2026

AMINX (Amana Income Fund Institutional Class) and TWEIX (American Century Equity Income Fund) are both Dividend funds. Over the past 10 years, AMINX returned 12.05%/yr vs 8.93%/yr for TWEIX. Their correlation of 0.82 means they have usually moved in the same direction. AMINX charges 0.76%/yr vs 0.94%/yr for TWEIX.

Performance

AMINX vs. TWEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amana Income Fund Institutional Class (AMINX) and American Century Equity Income Fund (TWEIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with AMINX having a 12.82% return and TWEIX slightly higher at 13.18%. Over the past 10 years, AMINX has outperformed TWEIX with an annualized return of 12.05%, while TWEIX has yielded a comparatively lower 8.93% annualized return.

AMINX

• 1D: 1.61%
• 1M: -0.29%
• 6M: 10.38%
• YTD: 12.82%
• 1Y: 21.50%
• 3Y*: 15.37%
• 5Y*: 10.98%
• 10Y*: 12.05%
• ALL TIME*: 11.04%

TWEIX

• 1D: 0.00%
• 1M: 2.27%
• 6M: 8.81%
• YTD: 13.18%
• 1Y: 19.64%
• 3Y*: 11.66%
• 5Y*: 7.98%
• 10Y*: 8.93%
• ALL TIME*: 10.15%

*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)
AMINX Amana Income Fund Institutional Class	$0.00	$0.00	$0.00
TWEIX American Century Equity Income Fund	$0.00	$0.00	$0.00

AMINX vs. TWEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AMINX Amana Income Fund Institutional Class	12.82%	16.69%	13.13%	13.87%	-8.65%	22.81%	14.18%	25.59%	-4.94%	21.95%
TWEIX American Century Equity Income Fund	13.18%	11.84%	10.51%	3.92%	-3.06%	16.83%	1.10%	24.14%	-3.77%	13.35%

Correlation

The correlation between AMINX and TWEIX is 0.52, 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.	0.52
Correlation (3Y) Balances recent behavior with more history.	0.59
Correlation (5Y) Shows whether the relationship held over a longer period.	0.72
Correlation (10Y) Provides a long-term view across more market conditions.	0.79
Correlation (All Time) Calculated using the full available price history since Jan 2, 2014	0.82

Over the past year, the correlation between AMINX and TWEIX has dropped to 0.52 - well below their long-term average of 0.82, suggesting their price drivers have been diverging.

Return for Risk

AMINX vs. TWEIX — Risk / Return Rank

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

AMINX

AMINX Risk / Return Rank: 57
AMINX Sharpe Ratio Rank: 62
AMINX Sortino Ratio Rank: 62
AMINX Omega Ratio Rank: 58
AMINX Calmar Ratio Rank: 48
AMINX Martin Ratio Rank: 54

TWEIX

TWEIX Risk / Return Rank: 83
TWEIX Sharpe Ratio Rank: 87
TWEIX Sortino Ratio Rank: 88
TWEIX Omega Ratio Rank: 81
TWEIX Calmar Ratio Rank: 84
TWEIX Martin Ratio Rank: 78

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.

AMINX vs. TWEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amana Income Fund Institutional Class (AMINX) and American Century Equity Income Fund (TWEIX). 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.

	AMINX	TWEIX	Difference
Sharpe ratio: Return per unit of total volatility	1.51	2.11	-0.60
Sortino ratio: Return per unit of downside risk	2.19	3.22	-1.03
Omega ratio: Gain probability vs. loss probability	1.27	1.37	-0.10
Calmar ratio: Return relative to maximum drawdown	1.82	2.81	-1.00
Martin ratio: Return relative to average drawdown	7.24	9.29	-2.05

AMINX vs. TWEIX - Sharpe Ratio Comparison

The current AMINX Sharpe Ratio is 1.51, which is comparable to the TWEIX Sharpe Ratio of 2.11. The chart below compares the historical Sharpe Ratios of AMINX and TWEIX, 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

AMINX vs. TWEIX - Drawdown Comparison

The maximum AMINX drawdown since its inception was -31.45%, smaller than the maximum TWEIX drawdown of -39.30%. Use the drawdown chart below to compare losses from any high point for AMINX and TWEIX.

Drawdown Indicators

	AMINX	TWEIX	Difference
Max Drawdown Largest peak-to-trough decline	-31.45%	-39.30%	+7.85%
Max Drawdown (1Y) Largest decline over 1 year	-11.00%	-6.43%	-4.57%
Max Drawdown (3Y) Largest decline over 3 years	-15.34%	-10.16%	-5.18%
Max Drawdown (5Y) Largest decline over 5 years	-19.04%	-13.69%	-5.35%
Max Drawdown (10Y) Largest decline over 10 years	-31.45%	-32.82%	+1.37%
Current Drawdown Current decline from peak	-1.09%	-0.63%	-0.46%
Average Drawdown Average peak-to-trough decline	-3.61%	-4.14%	+0.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.76%	1.95%	+0.81%

Volatility

AMINX vs. TWEIX - Volatility Comparison

Amana Income Fund Institutional Class (AMINX) has a higher volatility of 3.49% compared to American Century Equity Income Fund (TWEIX) at 2.87%. This indicates that AMINX's price experiences larger fluctuations and is considered to be riskier than TWEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AMINX	TWEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.49%	2.87%	+0.62%
Volatility (6M) Calculated over the trailing 6-month period	10.94%	6.59%	+4.35%
Volatility (1Y) Calculated over the trailing 1-year period	13.27%	8.59%	+4.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.08%	10.75%	+3.33%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.95%	13.32%	+2.63%

AMINX vs. TWEIX - Expense Ratio Comparison

AMINX has a 0.76% expense ratio, which is lower than TWEIX's 0.94% expense ratio.

Dividends

AMINX vs. TWEIX - Dividend Comparison

AMINX's dividend yield for the trailing twelve months is around 5.16%, less than TWEIX's 9.31% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMINX Amana Income Fund Institutional Class	5.16%	5.80%	6.06%	5.61%	8.61%	5.02%	6.91%	8.22%	6.87%	6.04%	4.58%	7.18%
TWEIX American Century Equity Income Fund	9.31%	10.35%	11.51%	8.02%	8.76%	6.83%	2.00%	7.38%	8.79%	11.95%	7.88%	10.49%

Frequently Asked Questions

Can I hold both AMINX and TWEIX in my portfolio?

AMINX and TWEIX have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AMINX or TWEIX?

AMINX has higher volatility (3.49%) compared to TWEIX (2.87%). In terms of maximum drawdown, AMINX dropped -31.45% vs TWEIX's -39.30%.

Which has better risk-adjusted returns?

TWEIX currently has the higher Sharpe Ratio (2.11 vs 1.51), 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.