ACITX vs. TWHIX
ACITX (American Century Inflation-Adjusted Bond Fund) and TWHIX (American Century Heritage Fund) are both mutual funds - ACITX is a Inflation-Protected Bonds fund managed by American Century, while TWHIX is a Mid Cap Growth Equities fund managed by American Century. Over the past 10 years, ACITX returned 2.39%/yr vs 11.27%/yr for TWHIX. Their -0.09 correlation means they have often moved in opposite directions in the past. ACITX charges 0.46%/yr vs 1.00%/yr for TWHIX.
Performance
ACITX vs. TWHIX - Performance Comparison
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Returns By Period
In the year-to-date period, ACITX achieves a 0.56% return, which is significantly lower than TWHIX's 3.13% return. Over the past 10 years, ACITX has underperformed TWHIX with an annualized return of 2.39%, while TWHIX has yielded a comparatively higher 11.27% annualized return.
ACITX
- 1D
- -0.10%
- 1M
- -0.57%
- 6M
- 0.09%
- YTD
- 0.56%
- 1Y
- 1.79%
- 3Y*
- 3.45%
- 5Y*
- 0.04%
- 10Y*
- 2.39%
- ALL TIME*
- 4.24%
TWHIX
- 1D
- 2.10%
- 1M
- -3.99%
- 6M
- 3.23%
- YTD
- 3.13%
- 1Y
- 0.36%
- 3Y*
- 11.89%
- 5Y*
- 3.31%
- 10Y*
- 11.27%
- ALL TIME*
- 10.98%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
ACITX vs. TWHIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ACITX American Century Inflation-Adjusted Bond Fund | 0.56% | 6.68% | 1.68% | 3.17% | -12.37% | 6.38% | 10.28% | 7.85% | -1.21% | 4.47% |
TWHIX American Century Heritage Fund | 3.13% | 6.53% | 24.66% | 20.64% | -28.13% | 11.52% | 42.61% | 35.50% | -5.08% | 21.83% |
Correlation
The correlation between ACITX and TWHIX is 0.27, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.27 |
Correlation (3Y) Balances recent behavior with more history. | 0.17 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.15 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.06 |
Correlation (All Time) Calculated using the full available price history since Feb 10, 1997 | -0.09 |
The correlation between ACITX and TWHIX shifts across timeframes, from -0.09 (all time) to 0.27 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
ACITX vs. TWHIX — Risk / Return Rank
ACITX
TWHIX
ACITX vs. TWHIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Inflation-Adjusted Bond Fund (ACITX) and American Century Heritage Fund (TWHIX). 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.
| ACITX | TWHIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.81 | ||
| Sortino ratioReturn per unit of downside risk | +1.08 | ||
| Omega ratioGain probability vs. loss probability | 1.12 | 1.00 | +0.13 |
| Calmar ratioReturn relative to maximum drawdown | 1.11 | -0.13 | +1.24 |
| Martin ratioReturn relative to average drawdown | 3.19 | -0.36 | +3.54 |
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Drawdowns
ACITX vs. TWHIX - Drawdown Comparison
The maximum ACITX drawdown since its inception was -15.50%, smaller than the maximum TWHIX drawdown of -56.98%. Use the drawdown chart below to compare losses from any high point for ACITX and TWHIX.
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Drawdown Indicators
| ACITX | TWHIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.50% | -56.98% | +41.48% |
Max Drawdown (1Y)Largest decline over 1 year | -2.05% | -15.82% | +13.77% |
Max Drawdown (3Y)Largest decline over 3 years | -4.18% | -26.30% | +22.12% |
Max Drawdown (5Y)Largest decline over 5 years | -15.50% | -40.34% | +24.84% |
Max Drawdown (10Y)Largest decline over 10 years | -15.50% | -40.34% | +24.84% |
Current DrawdownCurrent decline from peak | -1.99% | -5.18% | +3.19% |
Average DrawdownAverage peak-to-trough decline | -3.23% | -12.21% | +8.98% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.71% | 5.57% | -4.86% |
Volatility
ACITX vs. TWHIX - Volatility Comparison
The current volatility for American Century Inflation-Adjusted Bond Fund (ACITX) is 0.77%, while American Century Heritage Fund (TWHIX) has a volatility of 4.82%. This indicates that ACITX experiences smaller price fluctuations and is considered to be less risky than TWHIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ACITX | TWHIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.77% | 4.82% | -4.05% |
Volatility (6M)Calculated over the trailing 6-month period | 2.39% | 14.77% | -12.38% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.24% | 18.53% | -15.29% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.13% | 23.41% | -17.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.49% | 22.85% | -17.36% |
ACITX vs. TWHIX - Expense Ratio Comparison
ACITX has a 0.46% expense ratio, which is lower than TWHIX's 1.00% expense ratio.
Dividends
ACITX vs. TWHIX - Dividend Comparison
ACITX's dividend yield for the trailing twelve months is around 3.93%, less than TWHIX's 21.47% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACITX American Century Inflation-Adjusted Bond Fund | 3.93% | 4.30% | 2.19% | 4.44% | 7.34% | 4.47% | 1.16% | 2.45% | 4.31% | 3.47% | 2.27% | 0.99% |
TWHIX American Century Heritage Fund | 21.47% | 22.14% | 15.58% | 0.78% | 0.98% | 12.00% | 13.72% | 11.32% | 25.33% | 9.38% | 8.71% | 0.00% |
Frequently Asked Questions
ACITX and TWHIX have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TWHIX has higher volatility (4.82%) compared to ACITX (0.77%). In terms of maximum drawdown, ACITX dropped -15.50% vs TWHIX's -56.98%.
ACITX currently has the higher Sharpe Ratio (0.71 vs -0.11), 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.
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