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Fidelity Flex 500 Index Fund (FDFIX)
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Fund Info

ISIN
US3159116850
CUSIP
315911685
Issuer
Fidelity
Inception Date
Mar 9, 2017
Min. Investment
$0
Distribution Policy
Distributing
Asset Class
Equity
Asset Class Size
Large-Cap
Asset Class Style
Blend

Share Price Chart


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Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in Fidelity Flex 500 Index Fund, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.


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S&P 500 Index

Returns By Period

Fidelity Flex 500 Index Fund (FDFIX) has returned -7.27% so far this year and 13.90% over the past 12 months.


Fidelity Flex 500 Index Fund

1D
-0.33%
1M
-7.59%
YTD
-7.27%
6M
-4.96%
1Y
13.90%
3Y*
17.02%
5Y*
11.31%
10Y*

Benchmark (S&P 500 Index)

1D
2.91%
1M
-5.09%
YTD
-4.63%
6M
-2.39%
1Y
16.33%
3Y*
16.69%
5Y*
10.18%
10Y*
12.16%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Mar 9, 2017, FDFIX's average daily return is +0.06%, while the average monthly return is +1.14%. At this rate, your investment would double in approximately 5.1 years.

Historically, 69% of months were positive and 31% were negative. The best month was Apr 2020 with a return of +12.8%, while the worst month was Mar 2020 at -12.4%. The longest winning streak lasted 10 consecutive months, and the longest losing streak was 3 months.

On a daily basis, FDFIX closed higher 53% of trading days. The best single day was Apr 9, 2025 with a return of +9.5%, while the worst single day was Mar 16, 2020 at -12.0%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20261.20%-0.85%-7.59%-7.27%
20252.79%-1.32%-5.62%-0.73%6.31%5.10%2.27%1.92%3.66%2.42%0.07%0.00%17.59%
20241.67%5.37%3.21%-4.07%4.93%3.59%1.23%2.42%2.15%-0.90%5.87%-2.39%25.06%
20236.30%-2.47%3.66%1.57%0.45%6.60%3.24%-1.58%-4.77%-2.12%9.16%4.51%26.27%
2022-5.17%-2.96%3.69%-8.71%0.17%-8.26%9.24%-4.08%-9.23%8.11%5.57%-5.75%-18.10%
2021-1.00%2.78%4.36%5.35%0.67%2.34%2.38%3.04%-4.65%7.04%-0.71%4.46%28.69%

Benchmark Metrics

Fidelity Flex 500 Index Fund has an annualized alpha of 1.58%, beta of 1.00, and R² of 1.00 versus S&P 500 Index. Calculated based on daily prices since March 10, 2017.

  • This fund captured 104.63% of S&P 500 Index gains but only 97.64% of its losses — a favorable profile for investors.
  • With beta of 1.00 and R² of 1.00, this fund moves broadly in line with S&P 500 Index — much of its variation is explained by market exposure rather than independent behavior.

Alpha
1.58%
Beta
1.00
1.00
Upside Capture
104.63%
Downside Capture
97.64%

Expense Ratio

FDFIX has an expense ratio of 0.00%, meaning no management fees are charged.


Return for Risk

Risk / Return Rank

FDFIX ranks 38 for risk / return — below 38% of mutual funds on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.


FDFIX Risk / Return Rank: 3838
Overall Rank
FDFIX Sharpe Ratio Rank: 3535
Sharpe Ratio Rank
FDFIX Sortino Ratio Rank: 3838
Sortino Ratio Rank
FDFIX Omega Ratio Rank: 4141
Omega Ratio Rank
FDFIX Calmar Ratio Rank: 3434
Calmar Ratio Rank
FDFIX Martin Ratio Rank: 4444
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.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for Fidelity Flex 500 Index Fund (FDFIX) and compare them to a chosen benchmark (S&P 500 Index).


FDFIXBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

0.81

0.90

-0.09

Sortino ratio

Return per unit of downside risk

1.26

1.39

-0.13

Omega ratio

Gain probability vs. loss probability

1.19

1.21

-0.02

Calmar ratio

Return relative to maximum drawdown

0.96

1.40

-0.44

Martin ratio

Return relative to average drawdown

4.59

6.61

-2.01

Explore FDFIX risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

Dividends

Dividend History

Fidelity Flex 500 Index Fund provided a 1.20% dividend yield over the last twelve months, with an annual payout of $0.32 per share. The fund has been increasing its distributions for 5 consecutive years.


0.50%1.00%1.50%2.00%$0.00$0.05$0.10$0.15$0.20$0.25$0.30$0.35201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM202520242023202220212020201920182017
Dividend$0.32$0.32$0.32$0.30$0.28$0.26$0.24$0.25$0.23$0.06

Dividend yield

1.20%1.11%1.26%1.48%1.70%1.27%1.52%1.78%2.16%0.50%

Monthly Dividends

The table displays the monthly dividend distributions for Fidelity Flex 500 Index Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.00$0.00$0.00$0.00
2025$0.00$0.00$0.00$0.07$0.00$0.00$0.08$0.00$0.00$0.08$0.00$0.09$0.32
2024$0.00$0.00$0.00$0.07$0.00$0.00$0.08$0.00$0.00$0.08$0.00$0.09$0.32
2023$0.00$0.00$0.00$0.07$0.00$0.00$0.07$0.00$0.00$0.07$0.00$0.09$0.30
2022$0.00$0.00$0.00$0.06$0.00$0.00$0.07$0.00$0.00$0.07$0.00$0.08$0.28
2021$0.00$0.00$0.00$0.05$0.00$0.00$0.06$0.00$0.00$0.06$0.00$0.09$0.26

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the Fidelity Flex 500 Index Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Fidelity Flex 500 Index Fund was 33.77%, occurring on Mar 23, 2020. Recovery took 97 trading sessions.

The current Fidelity Flex 500 Index Fund drawdown is 8.99%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-33.77%Feb 20, 202023Mar 23, 202097Aug 10, 2020120
-24.51%Jan 4, 2022195Oct 12, 2022294Dec 13, 2023489
-19.34%Sep 24, 201864Dec 24, 201875Apr 12, 2019139
-18.76%Feb 20, 202534Apr 8, 202554Jun 26, 202588
-10.06%Jan 29, 20189Feb 8, 2018115Jul 25, 2018124

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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