FBIOX vs. FSENX

Last updated Jun 4, 2026

FBIOX (Fidelity Select Biotechnology Portfolio) and FSENX (Fidelity Select Energy Portfolio) are both mutual funds - FBIOX is a Health & Biotech Equities fund managed by Fidelity, while FSENX is a Energy Equities fund managed by Fidelity. Over the past 10 years, FBIOX returned 9.09%/yr vs 9.68%/yr for FSENX. At a 0.36 correlation, their price movements are largely independent. FBIOX charges 0.69%/yr vs 0.77%/yr for FSENX.

Performance

FBIOX vs. FSENX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Select Biotechnology Portfolio (FBIOX) and Fidelity Select Energy Portfolio (FSENX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FBIOX achieves a 0.03% return, which is significantly lower than FSENX's 35.02% return. Over the past 10 years, FBIOX has underperformed FSENX with an annualized return of 9.09%, while FSENX has yielded a comparatively higher 9.68% annualized return.

FBIOX

• 1D: -3.67%
• 1M: -3.79%
• YTD: 0.03%
• 6M: -0.21%
• 1Y: 42.15%
• 3Y*: 15.71%
• 5Y*: 5.77%
• 10Y*: 9.09%

FSENX

• 1D: 1.38%
• 1M: -2.65%
• YTD: 35.02%
• 6M: 31.99%
• 1Y: 51.42%
• 3Y*: 19.21%
• 5Y*: 22.08%
• 10Y*: 9.68%

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

FBIOX vs. FSENX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FBIOX Fidelity Select Biotechnology Portfolio	0.03%	36.38%	7.26%	10.09%	-15.87%	-12.26%	38.62%	36.12%	-10.92%	27.87%
FSENX Fidelity Select Energy Portfolio	35.02%	10.56%	4.26%	0.94%	62.98%	55.31%	-32.51%	9.90%	-24.94%	-2.65%

Correlation

The correlation between FBIOX and FSENX is -0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.12
Correlation (5Y) Calculated over the trailing 5-year period	0.19
Correlation (10Y) Calculated over the trailing 10-year period	0.28
Correlation (All Time) Calculated using the full available price history since Dec 17, 1985	0.36

The correlation between FBIOX and FSENX shifts across timeframes, from -0.07 (1 year) to 0.36 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FBIOX vs. FSENX — Risk / Return Rank

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

FBIOX

FBIOX Risk / Return Rank: 66
FBIOX Sharpe Ratio Rank: 53
FBIOX Sortino Ratio Rank: 50
FBIOX Omega Ratio Rank: 43
FBIOX Calmar Ratio Rank: 95
FBIOX Martin Ratio Rank: 90

FSENX

FSENX Risk / Return Rank: 79
FSENX Sharpe Ratio Rank: 85
FSENX Sortino Ratio Rank: 70
FSENX Omega Ratio Rank: 61
FSENX Calmar Ratio Rank: 94
FSENX Martin Ratio Rank: 84

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.

FBIOX vs. FSENX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select Biotechnology Portfolio (FBIOX) and Fidelity Select Energy Portfolio (FSENX). 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.

	FBIOX	FSENX	Difference
Sharpe ratio: Return per unit of total volatility	2.15	2.74	-0.59
Sortino ratio: Return per unit of downside risk	2.96	3.47	-0.52
Omega ratio: Gain probability vs. loss probability	1.35	1.43	-0.08
Calmar ratio: Return relative to maximum drawdown	5.81	5.42	+0.39
Martin ratio: Return relative to average drawdown	18.24	15.96	+2.27
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FBIOX vs. FSENX - Sharpe Ratio Comparison

The current FBIOX Sharpe Ratio is 2.15, which is comparable to the FSENX Sharpe Ratio of 2.74. The chart below compares the historical Sharpe Ratios of FBIOX and FSENX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FBIOX	FSENX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.15	2.74	-0.59
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.23	0.81	-0.58
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.35	0.31	+0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.32	+0.15

Drawdowns

FBIOX vs. FSENX - Drawdown Comparison

The maximum FBIOX drawdown since its inception was -71.98%, smaller than the maximum FSENX drawdown of -76.24%. Use the drawdown chart below to compare losses from any high point for FBIOX and FSENX.

Drawdown Indicators

	FBIOX	FSENX	Difference
Max Drawdown Largest peak-to-trough decline	-71.98%	-76.24%	+4.26%
Max Drawdown (1Y) Largest decline over 1 year	-7.62%	-9.95%	+2.33%
Max Drawdown (3Y) Largest decline over 3 years	-27.83%	-25.85%	-1.98%
Max Drawdown (5Y) Largest decline over 5 years	-44.87%	-28.02%	-16.85%
Max Drawdown (10Y) Largest decline over 10 years	-48.66%	-72.11%	+23.45%
Current Drawdown Current decline from peak	-7.02%	-5.09%	-1.93%
Average Drawdown Average peak-to-trough decline	-23.63%	-17.01%	-6.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.42%	3.37%	-0.95%

Volatility

FBIOX vs. FSENX - Volatility Comparison

Fidelity Select Biotechnology Portfolio (FBIOX) and Fidelity Select Energy Portfolio (FSENX) have volatilities of 7.50% and 7.60%, 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

	FBIOX	FSENX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.50%	7.60%	-0.10%
Volatility (6M) Calculated over the trailing 6-month period	16.31%	15.35%	+0.96%
Volatility (1Y) Calculated over the trailing 1-year period	20.71%	19.70%	+1.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.96%	27.26%	-2.30%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.25%	30.96%	-4.71%

FBIOX vs. FSENX - Expense Ratio Comparison

FBIOX has a 0.69% expense ratio, which is lower than FSENX's 0.77% expense ratio.

Dividends

FBIOX vs. FSENX - Dividend Comparison

FBIOX's dividend yield for the trailing twelve months is around 6.72%, more than FSENX's 1.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FBIOX Fidelity Select Biotechnology Portfolio	6.72%	2.47%	1.21%	0.45%	0.00%	14.48%	19.46%	8.89%	11.18%	1.41%	3.42%	6.71%
FSENX Fidelity Select Energy Portfolio	1.59%	1.95%	1.95%	1.98%	2.50%	2.25%	3.43%	1.84%	1.48%	1.74%	0.62%	1.29%

Frequently Asked Questions

Can I hold both FBIOX and FSENX in my portfolio?

FBIOX and FSENX have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FBIOX or FSENX?

FSENX has higher volatility (7.60%) compared to FBIOX (7.50%). In terms of maximum drawdown, FBIOX dropped -71.98% vs FSENX's -76.24%.

Which has better risk-adjusted returns?

FSENX currently has the higher Sharpe Ratio (2.74 vs 2.15), 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.