AMCPX vs. AMPCX
AMCPX (American Funds AMCAP Fund Class A) and AMPCX (American Funds AMCAP Fund Class C) are both Large Cap Growth Equities funds from American Funds. Over the past 10 years, AMCPX returned 12.36%/yr vs 11.76%/yr for AMPCX. With a 1.00 correlation, they move nearly in lockstep. AMCPX charges 0.64%/yr vs 1.40%/yr for AMPCX.
Performance
AMCPX vs. AMPCX - Performance Comparison
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Returns By Period
In the year-to-date period, AMCPX achieves a 5.53% return, which is significantly higher than AMPCX's 5.16% return. Both investments have delivered pretty close results over the past 10 years, with AMCPX having a 12.36% annualized return and AMPCX not far behind at 11.76%.
AMCPX
- 1D
- 1.49%
- 1M
- 1.54%
- YTD
- 5.53%
- 6M
- 5.33%
- 1Y
- 20.65%
- 3Y*
- 18.68%
- 5Y*
- 9.06%
- 10Y*
- 12.36%
AMPCX
- 1D
- 1.51%
- 1M
- 1.46%
- YTD
- 5.16%
- 6M
- 4.92%
- 1Y
- 19.73%
- 3Y*
- 17.78%
- 5Y*
- 8.80%
- 10Y*
- 11.76%
AMCPX vs. AMPCX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AMCPX American Funds AMCAP Fund Class A | 5.53% | 17.68% | 21.11% | 31.04% | -28.67% | 20.57% | 21.42% | 26.35% | -4.42% | 22.08% |
AMPCX American Funds AMCAP Fund Class C | 5.16% | 16.78% | 20.17% | 30.08% | -29.17% | 22.77% | 20.52% | 25.37% | -5.50% | 21.11% |
Correlation
The correlation between AMCPX and AMPCX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 1.00 |
Correlation (3Y) Calculated over the trailing 3-year period | 1.00 |
Correlation (5Y) Calculated over the trailing 5-year period | 1.00 |
Correlation (10Y) Calculated over the trailing 10-year period | 1.00 |
Correlation (All Time) Calculated using the full available price history since Mar 15, 2001 | 1.00 |
The correlation between AMCPX and AMPCX has been stable across timeframes, ranging from 1.00 to 1.00 - a consistent structural relationship.
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Return for Risk
AMCPX vs. AMPCX — Risk / Return Rank
AMCPX
AMPCX
AMCPX vs. AMPCX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Funds AMCAP Fund Class A (AMCPX) and American Funds AMCAP Fund Class C (AMPCX). 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.
| AMCPX | AMPCX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.06 | ||
| Sortino ratioReturn per unit of downside risk | +0.08 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.23 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 1.43 | 1.35 | +0.08 |
| Martin ratioReturn relative to average drawdown | 5.70 | 5.36 | +0.34 |
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Drawdowns
AMCPX vs. AMPCX - Drawdown Comparison
The maximum AMCPX drawdown since its inception was -62.37%, which is greater than AMPCX's maximum drawdown of -53.38%. Use the drawdown chart below to compare losses from any high point for AMCPX and AMPCX.
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Drawdown Indicators
| AMCPX | AMPCX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -62.37% | -53.38% | -8.99% |
Max Drawdown (1Y)Largest decline over 1 year | -14.18% | -14.33% | +0.15% |
Max Drawdown (3Y)Largest decline over 3 years | -19.71% | -19.81% | +0.10% |
Max Drawdown (5Y)Largest decline over 5 years | -36.90% | -35.67% | -1.23% |
Max Drawdown (10Y)Largest decline over 10 years | -36.90% | -35.67% | -1.23% |
Current DrawdownCurrent decline from peak | -1.53% | -1.57% | +0.04% |
Average DrawdownAverage peak-to-trough decline | -9.57% | -9.20% | -0.37% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.55% | 3.60% | -0.05% |
Volatility
AMCPX vs. AMPCX - Volatility Comparison
American Funds AMCAP Fund Class A (AMCPX) and American Funds AMCAP Fund Class C (AMPCX) have volatilities of 5.90% and 5.92%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMCPX | AMPCX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.90% | 5.92% | -0.02% |
Volatility (6M)Calculated over the trailing 6-month period | 12.43% | 12.43% | 0.00% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.38% | 15.39% | -0.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.37% | 19.39% | -0.02% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.78% | 18.80% | -0.02% |
AMCPX vs. AMPCX - Expense Ratio Comparison
AMCPX has a 0.64% expense ratio, which is lower than AMPCX's 1.40% expense ratio.
Dividends
AMCPX vs. AMPCX - Dividend Comparison
AMCPX's dividend yield for the trailing twelve months is around 12.62%, less than AMPCX's 16.88% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMCPX American Funds AMCAP Fund Class A | 12.62% | 8.73% | 8.19% | 3.26% | 7.54% | 3.43% | 3.88% | 4.90% | 7.84% | 5.37% | 3.81% | 8.86% |
AMPCX American Funds AMCAP Fund Class C | 16.88% | 11.35% | 9.83% | 3.32% | 9.21% | 7.09% | 4.32% | 5.06% | 8.25% | 5.61% | 3.77% | 9.83% |
Frequently Asked Questions
With a correlation of 1.00, AMCPX and AMPCX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
AMPCX has higher volatility (5.92%) compared to AMCPX (5.90%). In terms of maximum drawdown, AMCPX dropped -62.37% vs AMPCX's -53.38%.
AMCPX currently has the higher Sharpe Ratio (1.32 vs 1.26), 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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