FDETX vs. YAFFX

Last updated Aug 4, 2026

FDETX (Fidelity Advisor Capital Development Fund Class O) and YAFFX (AMG Yacktman Focused Fund) are both Large Cap Value Equities funds. Over the past 10 years, FDETX returned 15.83%/yr vs 13.12%/yr for YAFFX. Their 0.76 correlation means they have sometimes moved together and sometimes differently. FDETX charges 0.56%/yr vs 1.25%/yr for YAFFX.

Performance

FDETX vs. YAFFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Capital Development Fund Class O (FDETX) and AMG Yacktman Focused Fund (YAFFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FDETX achieves a 11.87% return, which is significantly lower than YAFFX's 25.82% return. Over the past 10 years, FDETX has outperformed YAFFX with an annualized return of 15.83%, while YAFFX has yielded a comparatively lower 13.12% annualized return.

FDETX

• 1D: 0.98%
• 1M: 0.95%
• 6M: 8.00%
• YTD: 11.87%
• 1Y: 24.99%
• 3Y*: 23.79%
• 5Y*: 16.79%
• 10Y*: 15.83%
• ALL TIME*: 15.34%

YAFFX

• 1D: 1.17%
• 1M: 4.09%
• 6M: 15.10%
• YTD: 25.82%
• 1Y: 43.31%
• 3Y*: 18.05%
• 5Y*: 11.82%
• 10Y*: 13.12%
• ALL TIME*: 10.51%

*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)
FDETX Fidelity Advisor Capital Development Fund Class O	$0.00	$0.00	$0.00
YAFFX AMG Yacktman Focused Fund	$0.00	$0.00	$0.00

FDETX vs. YAFFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FDETX Fidelity Advisor Capital Development Fund Class O	11.87%	27.60%	27.07%	24.20%	-8.00%	25.32%	9.12%	31.39%	-9.09%	16.45%
YAFFX AMG Yacktman Focused Fund	25.82%	23.70%	0.63%	16.53%	-8.20%	16.48%	17.22%	19.21%	2.99%	20.07%

Correlation

The correlation between FDETX and YAFFX is 0.47, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.47
Correlation (3Y) Balances recent behavior with more history.	0.63
Correlation (5Y) Shows whether the relationship held over a longer period.	0.77
Correlation (10Y) Provides a long-term view across more market conditions.	0.78
Correlation (All Time) Calculated using the full available price history since Apr 30, 1997	0.76

Over the past year, the correlation between FDETX and YAFFX has dropped to 0.47 - well below their long-term average of 0.76, suggesting their price drivers have been diverging.

Return for Risk

FDETX vs. YAFFX — Risk / Return Rank

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

FDETX

FDETX Risk / Return Rank: 73
FDETX Sharpe Ratio Rank: 73
FDETX Sortino Ratio Rank: 70
FDETX Omega Ratio Rank: 67
FDETX Calmar Ratio Rank: 70
FDETX Martin Ratio Rank: 83

YAFFX

YAFFX Risk / Return Rank: 91
YAFFX Sharpe Ratio Rank: 95
YAFFX Sortino Ratio Rank: 87
YAFFX Omega Ratio Rank: 90
YAFFX Calmar Ratio Rank: 96
YAFFX Martin Ratio Rank: 87

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.

FDETX vs. YAFFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Capital Development Fund Class O (FDETX) and AMG Yacktman Focused Fund (YAFFX). 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.

	FDETX	YAFFX	Difference
Sharpe ratio: Return per unit of total volatility	1.77	2.57	-0.80
Sortino ratio: Return per unit of downside risk	2.48	3.19	-0.71
Omega ratio: Gain probability vs. loss probability	1.31	1.48	-0.17
Calmar ratio: Return relative to maximum drawdown	2.41	4.74	-2.34
Martin ratio: Return relative to average drawdown	10.70	11.78	-1.08

FDETX vs. YAFFX - Sharpe Ratio Comparison

The current FDETX Sharpe Ratio is 1.77, which is lower than the YAFFX Sharpe Ratio of 2.57. The chart below compares the historical Sharpe Ratios of FDETX and YAFFX, 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

FDETX vs. YAFFX - Drawdown Comparison

The maximum FDETX drawdown since its inception was -66.86%, which is greater than YAFFX's maximum drawdown of -43.80%. Use the drawdown chart below to compare losses from any high point for FDETX and YAFFX.

Drawdown Indicators

	FDETX	YAFFX	Difference
Max Drawdown Largest peak-to-trough decline	-66.86%	-43.80%	-23.06%
Max Drawdown (1Y) Largest decline over 1 year	-9.64%	-8.76%	-0.88%
Max Drawdown (3Y) Largest decline over 3 years	-19.76%	-15.63%	-4.13%
Max Drawdown (5Y) Largest decline over 5 years	-21.72%	-21.31%	-0.41%
Max Drawdown (10Y) Largest decline over 10 years	-36.61%	-30.62%	-5.99%
Current Drawdown Current decline from peak	-0.13%	-4.24%	+4.11%
Average Drawdown Average peak-to-trough decline	-11.18%	-6.09%	-5.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.17%	3.52%	-1.35%

Volatility

FDETX vs. YAFFX - Volatility Comparison

The current volatility for Fidelity Advisor Capital Development Fund Class O (FDETX) is 3.56%, while AMG Yacktman Focused Fund (YAFFX) has a volatility of 4.17%. This indicates that FDETX experiences smaller price fluctuations and is considered to be less risky than YAFFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDETX	YAFFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.56%	4.17%	-0.61%
Volatility (6M) Calculated over the trailing 6-month period	10.20%	14.27%	-4.07%
Volatility (1Y) Calculated over the trailing 1-year period	13.15%	16.23%	-3.08%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.58%	13.93%	+3.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.75%	14.34%	+4.41%

FDETX vs. YAFFX - Expense Ratio Comparison

FDETX has a 0.56% expense ratio, which is lower than YAFFX's 1.25% expense ratio.

Dividends

FDETX vs. YAFFX - Dividend Comparison

FDETX's dividend yield for the trailing twelve months is around 9.24%, less than YAFFX's 14.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FDETX Fidelity Advisor Capital Development Fund Class O	9.24%	10.34%	8.95%	4.39%	5.66%	5.63%	4.47%	7.46%	15.81%	5.34%	2.92%	5.97%
YAFFX AMG Yacktman Focused Fund	14.74%	18.55%	10.20%	4.42%	7.60%	4.70%	11.87%	15.84%	22.15%	11.82%	11.81%	24.36%

Frequently Asked Questions

Can I hold both FDETX and YAFFX in my portfolio?

FDETX and YAFFX have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FDETX or YAFFX?

YAFFX has higher volatility (4.17%) compared to FDETX (3.56%). In terms of maximum drawdown, FDETX dropped -66.86% vs YAFFX's -43.80%.

Which has better risk-adjusted returns?

YAFFX currently has the higher Sharpe Ratio (2.57 vs 1.77), 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.