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FMKFX vs. BPTRX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

FMKFX vs. BPTRX

Last updated Jul 3, 2026
See Documentation

FMKFX (Fidelity Magellan K6 Fund) and BPTRX (Baron Partners Fund) are both Large Cap Growth Equities funds. Over the past 5 years, FMKFX returned 11.22%/yr vs 13.22%/yr for BPTRX. A 0.68 correlation means they provide meaningful diversification when combined. FMKFX charges 0.45%/yr vs 1.36%/yr for BPTRX.

Performance

FMKFX vs. BPTRX - Performance Comparison

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

Loading charts...

Returns By Period

In the year-to-date period, FMKFX achieves a 6.86% return, which is significantly lower than BPTRX's 9.03% return.

FMKFX

1D
-0.94%
1M
-1.77%
6M
6.86%
YTD
6.86%
1Y
7.88%
3Y*
20.35%
5Y*
11.22%
10Y*
—

BPTRX

1D
-1.11%
1M
9.24%
6M
9.03%
YTD
9.03%
1Y
48.66%
3Y*
21.90%
5Y*
13.22%
10Y*
25.02%
*Multi-year figures are annualized to reflect compound growth (CAGR)

FMKFX vs. BPTRX - Yearly Performance Comparison

2026 (YTD)2025202420232022202120202019
FMKFX
Fidelity Magellan K6 Fund		6.86%10.90%33.14%31.33%-26.85%27.53%29.14%11.22%
BPTRX
Baron Partners Fund		9.03%24.54%32.75%43.09%-42.53%31.35%148.81%17.19%

Correlation

The correlation between FMKFX and BPTRX is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.49

Correlation (3Y)
Calculated over the trailing 3-year period

0.57

Correlation (5Y)
Calculated over the trailing 5-year period

0.66

Correlation (All Time)
Calculated using the full available price history since Jun 13, 2019

0.68

The correlation between FMKFX and BPTRX shifts across timeframes, from 0.49 (1 year) to 0.68 (all time), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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Fidelity Magellan K6 Fund

Baron Partners Fund

Often compared with FMKFX:
FMKFX vs. FSPSXFMKFX vs. QQQFMKFX vs. VIGAXFMKFX vs. SPYFMKFX vs. ADXFMKFX vs. BLUEXFMKFX vs. AMRGX
Often compared with BPTRX:
BPTRX vs. BFGFXBPTRX vs. ARKVXBPTRX vs. VOOBPTRX vs. BPTIXBPTRX vs. QQQBPTRX vs. BFGIXBPTRX vs. SSO

Return for Risk

FMKFX vs. BPTRX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
FMKFX
FMKFX Risk / Return Rank: 99
Overall Rank
FMKFX Sharpe Ratio Rank: 88
Sharpe Ratio Rank
FMKFX Sortino Ratio Rank: 88
Sortino Ratio Rank
FMKFX Omega Ratio Rank: 99
Omega Ratio Rank
FMKFX Calmar Ratio Rank: 88
Calmar Ratio Rank
FMKFX Martin Ratio Rank: 1010
Martin Ratio Rank
BPTRX
BPTRX Risk / Return Rank: 7171
Overall Rank
BPTRX Sharpe Ratio Rank: 4747
Sharpe Ratio Rank
BPTRX Sortino Ratio Rank: 7979
Sortino Ratio Rank
BPTRX Omega Ratio Rank: 7474
Omega Ratio Rank
BPTRX Calmar Ratio Rank: 9090
Calmar Ratio Rank
BPTRX Martin Ratio Rank: 6666
Martin Ratio Rank
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. BPTRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Magellan K6 Fund (FMKFX) and Baron Partners Fund (BPTRX). 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.

FMKFXBPTRXDifference
Sharpe ratioReturn per unit of total volatility
0.50
1.64

-1.14

Sortino ratioReturn per unit of downside risk
0.79
3.11

-2.32

Omega ratioGain probability vs. loss probability

1.10

1.39

-0.29

Calmar ratioReturn relative to maximum drawdown

0.57

3.88

-3.31

Martin ratioReturn relative to average drawdown

1.98

10.40

-8.42

FMKFX vs. BPTRX - Sharpe Ratio Comparison

The current FMKFX Sharpe Ratio is 0.50, which is lower than the BPTRX Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of FMKFX and BPTRX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

FMKFX vs. BPTRX - Drawdown Comparison

The maximum FMKFX drawdown since its inception was -32.73%, smaller than the maximum BPTRX drawdown of -64.11%. Use the drawdown chart below to compare losses from any high point for FMKFX and BPTRX.

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Drawdown Indicators

FMKFXBPTRXDifference

Max Drawdown

Largest peak-to-trough decline

-32.73%

-64.11%

+31.38%

Max Drawdown (1Y)

Largest decline over 1 year

-13.86%

-12.60%

-1.26%

Max Drawdown (3Y)

Largest decline over 3 years

-20.05%

-33.34%

+13.29%

Max Drawdown (5Y)

Largest decline over 5 years

-32.73%

-49.87%

+17.14%

Max Drawdown (10Y)

Largest decline over 10 years

—

-51.26%

—

Current Drawdown

Current decline from peak

-1.77%

-7.45%

+5.68%

Average Drawdown

Average peak-to-trough decline

-7.67%

-13.76%

+6.09%

Ulcer Index

Depth and duration of drawdowns from previous peaks

3.94%

4.69%

-0.75%

Volatility

FMKFX vs. BPTRX - Volatility Comparison

The current volatility for Fidelity Magellan K6 Fund (FMKFX) is 7.38%, while Baron Partners Fund (BPTRX) has a volatility of 14.29%. This indicates that FMKFX experiences smaller price fluctuations and is considered to be less risky than BPTRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

FMKFXBPTRXDifference

Volatility (1M)

Calculated over the trailing 1-month period

7.38%

14.29%

-6.91%

Volatility (6M)

Calculated over the trailing 6-month period

13.08%

18.03%

-4.95%

Volatility (1Y)

Calculated over the trailing 1-year period

15.71%

29.90%

-14.19%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

20.29%

34.14%

-13.85%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

22.36%

32.86%

-10.50%

FMKFX vs. BPTRX - Expense Ratio Comparison

FMKFX has a 0.45% expense ratio, which is lower than BPTRX's 1.36% expense ratio.

Dividends

FMKFX vs. BPTRX - Dividend Comparison

FMKFX's dividend yield for the trailing twelve months is around 6.17%, more than BPTRX's 3.08% yield.

PositionTTM20252024202320222021202020192018201720162015
BPTRX
Baron Partners Fund		3.08%3.36%0.76%0.00%3.19%7.72%3.67%0.26%0.00%0.00%0.00%0.35%
FMKFX
Fidelity Magellan K6 Fund		6.17%7.74%9.56%2.33%0.31%4.10%0.33%0.28%0.00%0.00%0.00%0.00%

Frequently Asked Questions

FMKFX and BPTRX have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

BPTRX has higher volatility (14.29%) compared to FMKFX (7.38%). In terms of maximum drawdown, FMKFX dropped -32.73% vs BPTRX's -64.11%.

BPTRX currently has the higher Sharpe Ratio (1.64 vs 0.50), 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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