FSDAX vs. DEC

Last updated Jul 14, 2026

FSDAX (Fidelity Select Defense & Aerospace Portfolio) is Aerospace & Defense fund actively managed by Fidelity, while DEC (Diversified Energy Company PLC) is a stock. Over the past year, FSDAX returned 25.97% vs 0.20% for DEC. At a 0.08 correlation, their price movements are largely independent.

Performance

FSDAX vs. DEC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Select Defense & Aerospace Portfolio (FSDAX) and Diversified Energy Company PLC (DEC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSDAX achieves a 13.28% return, which is significantly higher than DEC's -1.05% return.

FSDAX

• 1D: -0.34%
• 1M: 2.89%
• 6M: 3.66%
• YTD: 13.28%
• 1Y: 25.97%
• 3Y*: 28.87%
• 5Y*: 17.84%
• 10Y*: 15.91%

DEC

• 1D: 2.69%
• 1M: -0.79%
• 6M: 12.12%
• YTD: -1.05%
• 1Y: 0.20%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FSDAX vs. DEC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
FSDAX Fidelity Select Defense & Aerospace Portfolio	13.28%	50.03%	15.83%	2.11%
DEC Diversified Energy Company PLC	-1.05%	-6.66%	27.42%	-16.20%

Correlation

The correlation between FSDAX and DEC is -0.14, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.14
Correlation (All Time) Calculated using the full available price history since Dec 18, 2023	0.08

The correlation between FSDAX and DEC shifts across timeframes, from -0.14 (1 year) to 0.08 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FSDAX vs. DEC — Risk / Return Rank

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

FSDAX

FSDAX Risk / Return Rank: 30
FSDAX Sharpe Ratio Rank: 31
FSDAX Sortino Ratio Rank: 33
FSDAX Omega Ratio Rank: 29
FSDAX Calmar Ratio Rank: 32
FSDAX Martin Ratio Rank: 26

DEC

DEC Risk / Return Rank: 44
DEC Sharpe Ratio Rank: 45
DEC Sortino Ratio Rank: 41
DEC Omega Ratio Rank: 41
DEC Calmar Ratio Rank: 46
DEC Martin Ratio Rank: 45

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.

FSDAX vs. DEC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select Defense & Aerospace Portfolio (FSDAX) and Diversified Energy Company PLC (DEC). 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.

	FSDAX	DEC	Difference
Sharpe ratio: Return per unit of total volatility	1.21	0.00	+1.20
Sortino ratio: Return per unit of downside risk	1.82	0.30	+1.52
Omega ratio: Gain probability vs. loss probability	1.22	1.03	+0.18
Calmar ratio: Return relative to maximum drawdown	1.66	0.01	+1.65
Martin ratio: Return relative to average drawdown	4.71	0.01	+4.70

FSDAX vs. DEC - Sharpe Ratio Comparison

The current FSDAX Sharpe Ratio is 1.21, which is higher than the DEC Sharpe Ratio of 0.00. The chart below compares the historical Sharpe Ratios of FSDAX and DEC, 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

FSDAX vs. DEC - Drawdown Comparison

The maximum FSDAX drawdown since its inception was -60.59%, which is greater than DEC's maximum drawdown of -37.95%. Use the drawdown chart below to compare losses from any high point for FSDAX and DEC.

Drawdown Indicators

	FSDAX	DEC	Difference
Max Drawdown Largest peak-to-trough decline	-60.59%	-37.95%	-22.64%
Max Drawdown (1Y) Largest decline over 1 year	-16.13%	-30.22%	+14.09%
Max Drawdown (3Y) Largest decline over 3 years	-16.13%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-21.90%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-47.08%	—	—
Current Drawdown Current decline from peak	-4.63%	-23.42%	+18.79%
Average Drawdown Average peak-to-trough decline	-10.43%	-17.15%	+6.72%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.67%	15.00%	-9.33%

Volatility

FSDAX vs. DEC - Volatility Comparison

The current volatility for Fidelity Select Defense & Aerospace Portfolio (FSDAX) is 7.57%, while Diversified Energy Company PLC (DEC) has a volatility of 14.16%. This indicates that FSDAX experiences smaller price fluctuations and is considered to be less risky than DEC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSDAX	DEC	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.57%	14.16%	-6.59%
Volatility (6M) Calculated over the trailing 6-month period	18.54%	30.47%	-11.93%
Volatility (1Y) Calculated over the trailing 1-year period	22.20%	40.84%	-18.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.65%	45.68%	-25.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.44%	45.68%	-23.24%

Dividends

FSDAX vs. DEC - Dividend Comparison

FSDAX's dividend yield for the trailing twelve months is around 2.02%, less than DEC's 8.44% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DEC Diversified Energy Company PLC	8.44%	8.01%	10.39%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
FSDAX Fidelity Select Defense & Aerospace Portfolio	2.02%	4.48%	7.68%	6.47%	8.87%	8.38%	2.11%	2.62%	11.45%	3.57%	4.87%	6.30%

Frequently Asked Questions

Can I hold both FSDAX and DEC in my portfolio?

FSDAX and DEC have a correlation of -0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSDAX or DEC?

DEC has higher volatility (14.16%) compared to FSDAX (7.57%). In terms of maximum drawdown, FSDAX dropped -60.59% vs DEC's -37.95%.

Which has better risk-adjusted returns?

FSDAX currently has the higher Sharpe Ratio (1.21 vs 0.00), 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.