TWCUX vs. ONERX
Compare and contrast key facts about American Century Ultra Fund (TWCUX) and One Rock Fund (ONERX).
TWCUX is managed by American Century. It was launched on Nov 2, 1981. ONERX is managed by Wrona Investment Management. It was launched on Mar 6, 2020.
Performance
TWCUX vs. ONERX - Performance Comparison
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TWCUX vs. ONERX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
TWCUX American Century Ultra Fund | -8.79% | 12.66% | 29.54% | 43.36% | -32.38% | 23.47% | 67.45% |
ONERX One Rock Fund | -1.48% | 49.37% | 21.76% | 72.41% | -42.06% | 45.70% | 104.46% |
Returns By Period
In the year-to-date period, TWCUX achieves a -8.79% return, which is significantly lower than ONERX's -1.48% return.
TWCUX
- 1D
- 3.99%
- 1M
- -5.42%
- YTD
- -8.79%
- 6M
- -7.90%
- 1Y
- 14.91%
- 3Y*
- 17.99%
- 5Y*
- 9.40%
- 10Y*
- 16.15%
ONERX
- 1D
- 7.72%
- 1M
- -7.71%
- YTD
- -1.48%
- 6M
- -2.85%
- 1Y
- 79.18%
- 3Y*
- 35.95%
- 5Y*
- 20.20%
- 10Y*
- —
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TWCUX vs. ONERX - Expense Ratio Comparison
TWCUX has a 0.93% expense ratio, which is lower than ONERX's 1.75% expense ratio.
Return for Risk
TWCUX vs. ONERX — Risk / Return Rank
TWCUX
ONERX
TWCUX vs. ONERX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Ultra Fund (TWCUX) and One Rock Fund (ONERX). 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.
| TWCUX | ONERX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.68 | 1.96 | -1.28 |
Sortino ratioReturn per unit of downside risk | 1.15 | 2.42 | -1.26 |
Omega ratioGain probability vs. loss probability | 1.16 | 1.34 | -0.18 |
Calmar ratioReturn relative to maximum drawdown | 1.01 | 4.49 | -3.48 |
Martin ratioReturn relative to average drawdown | 3.53 | 15.11 | -11.59 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| TWCUX | ONERX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.68 | 1.96 | -1.28 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.42 | 0.02 | +0.39 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.74 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.51 | 0.04 | +0.47 |
Correlation
The correlation between TWCUX and ONERX is 0.83, 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
TWCUX vs. ONERX - Dividend Comparison
TWCUX's dividend yield for the trailing twelve months is around 12.69%, less than ONERX's 24.48% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TWCUX American Century Ultra Fund | 12.69% | 11.57% | 3.58% | 6.09% | 7.42% | 6.78% | 2.80% | 4.27% | 8.24% | 5.85% | 4.58% | 5.21% |
ONERX One Rock Fund | 24.48% | 24.12% | 0.00% | 0.00% | 10.57% | 28.88% | 18.66% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Drawdowns
TWCUX vs. ONERX - Drawdown Comparison
The maximum TWCUX drawdown since its inception was -62.11%, smaller than the maximum ONERX drawdown of -96.43%. Use the drawdown chart below to compare losses from any high point for TWCUX and ONERX.
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Drawdown Indicators
| TWCUX | ONERX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -62.11% | -96.43% | +34.32% |
Max Drawdown (1Y)Largest decline over 1 year | -15.72% | -17.63% | +1.91% |
Max Drawdown (5Y)Largest decline over 5 years | -35.23% | -96.43% | +61.20% |
Max Drawdown (10Y)Largest decline over 10 years | -35.23% | — | — |
Current DrawdownCurrent decline from peak | -12.36% | -92.58% | +80.22% |
Average DrawdownAverage peak-to-trough decline | -16.86% | -30.62% | +13.76% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.49% | 5.24% | -0.75% |
Volatility
TWCUX vs. ONERX - Volatility Comparison
The current volatility for American Century Ultra Fund (TWCUX) is 7.21%, while One Rock Fund (ONERX) has a volatility of 18.51%. This indicates that TWCUX experiences smaller price fluctuations and is considered to be less risky than ONERX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TWCUX | ONERX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.21% | 18.51% | -11.30% |
Volatility (6M)Calculated over the trailing 6-month period | 13.26% | 31.07% | -17.81% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.37% | 41.95% | -18.58% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.59% | 821.63% | -799.04% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.03% | 747.39% | -725.36% |