FMKFX vs. ADX

Last updated Apr 1, 2026

Compare and contrast key facts about Fidelity Magellan K6 Fund (FMKFX) and Adams Diversified Equity Fund, Inc. (ADX).

FMKFX is managed by Fidelity. It was launched on Jun 13, 2019. ADX is managed by Adams Funds. It was launched on Jan 2, 1990.

Performance

FMKFX vs. ADX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Magellan K6 Fund (FMKFX) and Adams Diversified Equity Fund, Inc. (ADX). The values are adjusted to include any dividend payments, if applicable.

FMKFX vs. ADX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
FMKFX Fidelity Magellan K6 Fund	-10.42%	10.90%	33.14%	31.33%	-26.85%	27.53%	29.14%	11.22%
ADX Adams Diversified Equity Fund, Inc.	-4.23%	26.03%	28.31%	31.49%	-19.82%	29.69%	17.28%	13.05%

Returns By Period

In the year-to-date period, FMKFX achieves a -10.42% return, which is significantly lower than ADX's -4.23% return.

FMKFX

• 1D: -0.55%
• 1M: -9.12%
• YTD: -10.42%
• 6M: -12.98%
• 1Y: 5.43%
• 3Y*: 16.93%
• 5Y*: 10.01%
• 10Y*: —

ADX

• 1D: 4.04%
• 1M: -5.48%
• YTD: -4.23%
• 6M: 2.17%
• 1Y: 25.55%
• 3Y*: 23.81%
• 5Y*: 14.65%
• 10Y*: 16.41%

*Multi-year figures are annualized to reflect compound growth (CAGR)

FMKFX vs. ADX - Expense Ratio Comparison

FMKFX has a 0.45% expense ratio, which is lower than ADX's 0.59% expense ratio.

ADX

Adams Diversified Equity Fund, Inc.

FMKFX

Fidelity Magellan K6 Fund

Return for Risk

FMKFX vs. ADX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FMKFX

FMKFX Risk / Return Rank: 11
FMKFX Sharpe Ratio Rank: 11
FMKFX Sortino Ratio Rank: 11
FMKFX Omega Ratio Rank: 12
FMKFX Calmar Ratio Rank: 10
FMKFX Martin Ratio Rank: 10

ADX

ADX Risk / Return Rank: 83
ADX Sharpe Ratio Rank: 77
ADX Sortino Ratio Rank: 81
ADX Omega Ratio Rank: 77
ADX Calmar Ratio Rank: 88
ADX Martin Ratio Rank: 92

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

FMKFX vs. ADX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Magellan K6 Fund (FMKFX) and Adams Diversified Equity Fund, Inc. (ADX). 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.

	FMKFX	ADX	Difference
Sharpe ratio Return per unit of total volatility	0.28	1.38	-1.10
Sortino ratio Return per unit of downside risk	0.55	2.06	-1.50
Omega ratio Gain probability vs. loss probability	1.08	1.29	-0.21
Calmar ratio Return relative to maximum drawdown	0.20	2.33	-2.13
Martin ratio Return relative to average drawdown	0.72	10.84	-10.12
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FMKFX vs. ADX - Sharpe Ratio Comparison

The current FMKFX Sharpe Ratio is 0.28, which is lower than the ADX Sharpe Ratio of 1.38. The chart below compares the historical Sharpe Ratios of FMKFX and ADX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FMKFX	ADX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.28	1.38	-1.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.50	0.86	-0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.92	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.59	0.09	+0.50

Correlation

The correlation between FMKFX and ADX is 0.85, 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

FMKFX vs. ADX - Dividend Comparison

FMKFX's dividend yield for the trailing twelve months is around 8.64%, more than ADX's 8.45% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FMKFX Fidelity Magellan K6 Fund	8.64%	7.74%	9.56%	2.33%	0.31%	4.10%	0.33%	0.28%	0.00%	0.00%	0.00%	0.00%
ADX Adams Diversified Equity Fund, Inc.	8.45%	7.93%	12.38%	7.34%	7.36%	15.35%	6.54%	9.00%	15.85%	9.18%	7.79%	7.17%

Drawdowns

FMKFX vs. ADX - Drawdown Comparison

The maximum FMKFX drawdown since its inception was -32.73%, smaller than the maximum ADX drawdown of -71.60%. Use the drawdown chart below to compare losses from any high point for FMKFX and ADX.

Drawdown Indicators

	FMKFX	ADX	Difference
Max Drawdown Largest peak-to-trough decline	-32.73%	-71.60%	+38.87%
Max Drawdown (1Y) Largest decline over 1 year	-13.86%	-11.12%	-2.74%
Max Drawdown (5Y) Largest decline over 5 years	-32.73%	-25.07%	-7.66%
Max Drawdown (10Y) Largest decline over 10 years	—	-37.17%	—
Current Drawdown Current decline from peak	-13.86%	-6.53%	-7.33%
Average Drawdown Average peak-to-trough decline	-7.87%	-23.22%	+15.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.87%	2.39%	+1.48%

Volatility

FMKFX vs. ADX - Volatility Comparison

The current volatility for Fidelity Magellan K6 Fund (FMKFX) is 5.13%, while Adams Diversified Equity Fund, Inc. (ADX) has a volatility of 6.18%. This indicates that FMKFX experiences smaller price fluctuations and is considered to be less risky than ADX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FMKFX	ADX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.13%	6.18%	-1.05%
Volatility (6M) Calculated over the trailing 6-month period	10.64%	10.53%	+0.11%
Volatility (1Y) Calculated over the trailing 1-year period	19.85%	18.63%	+1.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.03%	17.20%	+2.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.45%	17.95%	+4.50%