FSAIX vs. FXAIX

Last updated Jul 19, 2026

FSAIX (Fidelity Select Air Transportation Portfolio) and FXAIX (Fidelity 500 Index Fund) are both mutual funds - FSAIX is a Transportation Equities fund actively managed by Fidelity, while FXAIX is a S&P 500 fund tracking the S&P 500 Index. FSAIX is actively managed, while FXAIX is passively managed. A 0.58 correlation means they provide meaningful diversification when combined. FSAIX charges 0.85%/yr vs 0.02%/yr for FXAIX.

Performance

FSAIX vs. FXAIX - Performance Comparison

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

Returns By Period

FSAIX

• 1D: —
• 1M: —
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

FXAIX

• 1D: -0.51%
• 1M: 0.50%
• 6M: 9.17%
• YTD: 10.75%
• 1Y: 21.06%
• 3Y*: 20.13%
• 5Y*: 13.33%
• 10Y*: 15.17%

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

FSAIX vs. FXAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSAIX Fidelity Select Air Transportation Portfolio	0.00%	0.00%	0.00%	0.00%	0.00%	10.10%	-10.47%	21.06%	-12.54%	23.96%
FXAIX Fidelity 500 Index Fund	10.75%	17.84%	25.01%	26.29%	-18.14%	28.71%	18.42%	31.48%	-4.43%	21.82%

Correlation

The correlation between FSAIX and FXAIX is 0.58, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (5Y) Calculated over the trailing 5-year period	0.13
Correlation (10Y) Calculated over the trailing 10-year period	0.44
Correlation (All Time) Calculated using the full available price history since May 4, 2011	0.58

The correlation between FSAIX and FXAIX shifts across timeframes, from 0.13 (5 years) to 0.58 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FSAIX vs. FXAIX — Risk / Return Rank

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

FSAIX

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

FXAIX

FXAIX Risk / Return Rank: 57
FXAIX Sharpe Ratio Rank: 54
FXAIX Sortino Ratio Rank: 51
FXAIX Omega Ratio Rank: 52
FXAIX Calmar Ratio Rank: 57
FXAIX Martin Ratio Rank: 70

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.

FSAIX vs. FXAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select Air Transportation Portfolio (FSAIX) 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.

	FSAIX	FXAIX	Difference
Sharpe ratio: Return per unit of total volatility	—	1.74	—
Sortino ratio: Return per unit of downside risk	—	2.39	—
Omega ratio: Gain probability vs. loss probability	—	1.31	—
Calmar ratio: Return relative to maximum drawdown	—	2.45	—
Martin ratio: Return relative to average drawdown	—	10.75	—

Drawdowns

Drawdown Indicators

	FSAIX	FXAIX	Difference
Max Drawdown Largest peak-to-trough decline	—	-33.79%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-8.89%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-18.76%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-24.50%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-33.79%	—
Current Drawdown Current decline from peak	—	-0.86%	—
Average Drawdown Average peak-to-trough decline	—	-3.78%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.02%	—

Volatility

Volatility by Period

	FSAIX	FXAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	3.26%	—
Volatility (6M) Calculated over the trailing 6-month period	—	10.00%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	12.55%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	17.02%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	18.05%	—

FSAIX vs. FXAIX - Expense Ratio Comparison

FSAIX has a 0.85% expense ratio, which is higher than FXAIX's 0.02% expense ratio.

Dividends

FSAIX vs. FXAIX - Dividend Comparison

FSAIX has not paid dividends to shareholders, while FXAIX's dividend yield for the trailing twelve months is around 1.05%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FSAIX Fidelity Select Air Transportation Portfolio	0.00%	0.00%	0.00%	0.00%	0.00%	20.99%	2.07%	9.05%	12.74%	8.81%	0.66%	9.39%
FXAIX Fidelity 500 Index Fund	1.05%	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 FSAIX and FXAIX in my portfolio?

FSAIX and FXAIX have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.