FIDSX vs. FXAIX

Last updated Jun 17, 2026

FIDSX (Fidelity Select Financial Services Portfolio) and FXAIX (Fidelity 500 Index Fund) are both mutual funds - FIDSX is a Financials Equities fund managed by BlackRock, while FXAIX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, FIDSX returned 13.46%/yr vs 15.73%/yr for FXAIX. A 0.77 correlation means they provide meaningful diversification when combined. FIDSX charges 0.73%/yr vs 0.02%/yr for FXAIX.

Performance

FIDSX vs. FXAIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Select Financial Services Portfolio (FIDSX) and Fidelity 500 Index Fund (FXAIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FIDSX achieves a 1.74% return, which is significantly lower than FXAIX's 10.97% return. Over the past 10 years, FIDSX has underperformed FXAIX with an annualized return of 13.46%, while FXAIX has yielded a comparatively higher 15.73% annualized return.

FIDSX

• 1D: -0.19%
• 1M: 5.33%
• YTD: 1.74%
• 6M: -3.17%
• 1Y: 7.68%
• 3Y*: 20.26%
• 5Y*: 10.06%
• 10Y*: 13.46%

FXAIX

• 1D: 1.67%
• 1M: 2.10%
• YTD: 10.97%
• 6M: 11.75%
• 1Y: 26.72%
• 3Y*: 21.27%
• 5Y*: 13.95%
• 10Y*: 15.73%

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

FIDSX vs. FXAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIDSX Fidelity Select Financial Services Portfolio	1.74%	9.33%	32.82%	14.53%	-8.19%	33.13%	1.22%	34.25%	-16.13%	20.92%
FXAIX Fidelity 500 Index Fund	10.97%	17.84%	25.01%	26.29%	-18.14%	28.71%	18.42%	31.48%	-4.43%	21.82%

Correlation

The correlation between FIDSX and FXAIX is 0.59, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.63
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (10Y) Calculated over the trailing 10-year period	0.71
Correlation (All Time) Calculated using the full available price history since May 4, 2011	0.77

The correlation between FIDSX and FXAIX shifts across timeframes, from 0.59 (1 year) to 0.77 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FIDSX vs. FXAIX — Risk / Return Rank

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

FIDSX

FIDSX Risk / Return Rank: 7
FIDSX Sharpe Ratio Rank: 8
FIDSX Sortino Ratio Rank: 7
FIDSX Omega Ratio Rank: 8
FIDSX Calmar Ratio Rank: 7
FIDSX Martin Ratio Rank: 7

FXAIX

FXAIX Risk / Return Rank: 78
FXAIX Sharpe Ratio Rank: 79
FXAIX Sortino Ratio Rank: 73
FXAIX Omega Ratio Rank: 74
FXAIX Calmar Ratio Rank: 78
FXAIX Martin Ratio Rank: 86

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.

FIDSX vs. FXAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select Financial Services Portfolio (FIDSX) and Fidelity 500 Index Fund (FXAIX). 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.

	FIDSX	FXAIX	Difference
Sharpe ratio: Return per unit of total volatility	0.52	2.26	-1.74
Sortino ratio: Return per unit of downside risk	0.79	3.05	-2.26
Omega ratio: Gain probability vs. loss probability	1.11	1.41	-0.31
Calmar ratio: Return relative to maximum drawdown	0.54	3.15	-2.62
Martin ratio: Return relative to average drawdown	1.30	14.31	-13.01

FIDSX vs. FXAIX - Sharpe Ratio Comparison

The current FIDSX Sharpe Ratio is 0.52, which is lower than the FXAIX Sharpe Ratio of 2.26. The chart below compares the historical Sharpe Ratios of FIDSX and FXAIX, 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

FIDSX vs. FXAIX - Drawdown Comparison

The maximum FIDSX drawdown since its inception was -74.26%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for FIDSX and FXAIX.

Drawdown Indicators

	FIDSX	FXAIX	Difference
Max Drawdown Largest peak-to-trough decline	-74.26%	-33.79%	-40.47%
Max Drawdown (1Y) Largest decline over 1 year	-16.60%	-8.89%	-7.71%
Max Drawdown (3Y) Largest decline over 3 years	-19.44%	-18.76%	-0.68%
Max Drawdown (5Y) Largest decline over 5 years	-24.49%	-24.50%	+0.01%
Max Drawdown (10Y) Largest decline over 10 years	-45.48%	-33.79%	-11.69%
Current Drawdown Current decline from peak	-5.37%	-0.66%	-4.71%
Average Drawdown Average peak-to-trough decline	-13.94%	-3.79%	-10.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.83%	1.96%	+4.87%

Volatility

FIDSX vs. FXAIX - Volatility Comparison

Fidelity Select Financial Services Portfolio (FIDSX) and Fidelity 500 Index Fund (FXAIX) have volatilities of 4.53% and 4.67%, 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.

Volatility by Period

	FIDSX	FXAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.53%	4.67%	-0.14%
Volatility (6M) Calculated over the trailing 6-month period	13.46%	9.82%	+3.64%
Volatility (1Y) Calculated over the trailing 1-year period	17.09%	12.43%	+4.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.90%	17.00%	+3.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.69%	18.11%	+5.58%

FIDSX vs. FXAIX - Expense Ratio Comparison

FIDSX has a 0.73% expense ratio, which is higher than FXAIX's 0.02% expense ratio.

Dividends

FIDSX vs. FXAIX - Dividend Comparison

FIDSX's dividend yield for the trailing twelve months is around 1.42%, more than FXAIX's 1.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FIDSX Fidelity Select Financial Services Portfolio	1.42%	1.70%	6.03%	3.01%	11.32%	4.12%	5.86%	5.57%	12.89%	4.22%	1.00%	0.70%
FXAIX Fidelity 500 Index Fund	1.03%	1.11%	1.25%	1.45%	1.69%	1.22%	1.60%	2.06%	2.72%	1.97%	2.52%	2.83%

Frequently Asked Questions

Can I hold both FIDSX and FXAIX in my portfolio?

FIDSX and FXAIX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FIDSX or FXAIX?

FXAIX has higher volatility (4.67%) compared to FIDSX (4.53%). In terms of maximum drawdown, FIDSX dropped -74.26% vs FXAIX's -33.79%.

Which has better risk-adjusted returns?

FXAIX currently has the higher Sharpe Ratio (2.26 vs 0.52), 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.