FSMEX vs. BST

Last updated Jun 4, 2026

FSMEX (Fidelity Select Medical Technology and Devices Portfolio) is Health & Biotech Equities fund managed by Fidelity, while BST (BlackRock Science and Technology Trust) is a stock. Over the past 10 years, FSMEX returned 9.47%/yr vs 20.54%/yr for BST. A 0.55 correlation means they provide meaningful diversification when combined.

Performance

FSMEX vs. BST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Select Medical Technology and Devices Portfolio (FSMEX) and BlackRock Science and Technology Trust (BST). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSMEX achieves a -17.61% return, which is significantly lower than BST's 24.81% return. Over the past 10 years, FSMEX has underperformed BST with an annualized return of 9.47%, while BST has yielded a comparatively higher 20.54% annualized return.

FSMEX

• 1D: -1.64%
• 1M: 2.05%
• YTD: -17.61%
• 6M: -18.69%
• 1Y: -11.90%
• 3Y*: 0.79%
• 5Y*: -0.96%
• 10Y*: 9.47%

BST

• 1D: -1.50%
• 1M: 14.60%
• YTD: 24.81%
• 6M: 28.67%
• 1Y: 46.47%
• 3Y*: 23.83%
• 5Y*: 5.46%
• 10Y*: 20.54%

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

FSMEX vs. BST - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSMEX Fidelity Select Medical Technology and Devices Portfolio	-17.61%	8.13%	18.37%	0.62%	-24.84%	24.56%	30.18%	29.58%	15.98%	26.66%
BST BlackRock Science and Technology Trust	24.81%	23.65%	17.96%	30.07%	-38.28%	-0.35%	69.27%	34.57%	8.84%	57.43%

Correlation

The correlation between FSMEX and BST is 0.25, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.25
Correlation (3Y) Calculated over the trailing 3-year period	0.39
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (10Y) Calculated over the trailing 10-year period	0.56
Correlation (All Time) Calculated using the full available price history since Oct 30, 2014	0.55

Over the past year, the correlation between FSMEX and BST has dropped to 0.25 - well below their long-term average of 0.55, suggesting their price drivers have been diverging.

Return for Risk

FSMEX vs. BST — Risk / Return Rank

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

FSMEX

FSMEX Risk / Return Rank: 1
FSMEX Sharpe Ratio Rank: 1
FSMEX Sortino Ratio Rank: 1
FSMEX Omega Ratio Rank: 1
FSMEX Calmar Ratio Rank: 1
FSMEX Martin Ratio Rank: 1

BST

BST Risk / Return Rank: 88
BST Sharpe Ratio Rank: 92
BST Sortino Ratio Rank: 91
BST Omega Ratio Rank: 90
BST Calmar Ratio Rank: 82
BST Martin Ratio Rank: 87

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.

FSMEX vs. BST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select Medical Technology and Devices Portfolio (FSMEX) and BlackRock Science and Technology Trust (BST). 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.

	FSMEX	BST	Difference
Sharpe ratio Return per unit of total volatility	-0.65	2.59	-3.23
Sortino ratio Return per unit of downside risk	-0.82	3.47	-4.29
Omega ratio Gain probability vs. loss probability	0.91	1.45	-0.54
Calmar ratio Return relative to maximum drawdown	-0.45	3.05	-3.49
Martin ratio Return relative to average drawdown	-1.08	10.09	-11.17
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSMEX vs. BST - Sharpe Ratio Comparison

The current FSMEX Sharpe Ratio is -0.65, which is lower than the BST Sharpe Ratio of 2.59. The chart below compares the historical Sharpe Ratios of FSMEX and BST, 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

	FSMEX	BST	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.65	2.59	-3.23
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.05	0.23	-0.28
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.46	0.80	-0.34
Sharpe Ratio (All Time) Calculated using the full available price history	0.64	0.66	-0.02

Drawdowns

FSMEX vs. BST - Drawdown Comparison

The maximum FSMEX drawdown since its inception was -40.34%, smaller than the maximum BST drawdown of -47.72%. Use the drawdown chart below to compare losses from any high point for FSMEX and BST.

Drawdown Indicators

	FSMEX	BST	Difference
Max Drawdown Largest peak-to-trough decline	-40.34%	-47.72%	+7.38%
Max Drawdown (1Y) Largest decline over 1 year	-26.28%	-15.31%	-10.97%
Max Drawdown (3Y) Largest decline over 3 years	-26.28%	-23.37%	-2.91%
Max Drawdown (5Y) Largest decline over 5 years	-40.34%	-47.72%	+7.38%
Max Drawdown (10Y) Largest decline over 10 years	-40.34%	-47.72%	+7.38%
Current Drawdown Current decline from peak	-22.84%	-1.50%	-21.34%
Average Drawdown Average peak-to-trough decline	-7.75%	-12.98%	+5.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.81%	4.62%	+6.19%

Volatility

FSMEX vs. BST - Volatility Comparison

Fidelity Select Medical Technology and Devices Portfolio (FSMEX) has a higher volatility of 7.26% compared to BlackRock Science and Technology Trust (BST) at 6.35%. This indicates that FSMEX's price experiences larger fluctuations and is considered to be riskier than BST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSMEX	BST	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.26%	6.35%	+0.91%
Volatility (6M) Calculated over the trailing 6-month period	14.54%	15.24%	-0.70%
Volatility (1Y) Calculated over the trailing 1-year period	18.08%	18.07%	+0.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.01%	23.61%	-2.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.76%	25.75%	-4.99%

Dividends

FSMEX vs. BST - Dividend Comparison

FSMEX's dividend yield for the trailing twelve months is around 22.03%, more than BST's 8.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BST BlackRock Science and Technology Trust	8.56%	10.36%	8.21%	8.91%	10.57%	5.38%	3.85%	10.52%	6.41%	4.80%	6.69%	6.93%
FSMEX Fidelity Select Medical Technology and Devices Portfolio	22.03%	10.53%	17.04%	0.00%	1.80%	8.12%	6.65%	1.77%	7.47%	6.26%	5.84%	16.35%

Frequently Asked Questions

Can I hold both FSMEX and BST in my portfolio?

FSMEX and BST have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSMEX or BST?

FSMEX has higher volatility (7.26%) compared to BST (6.35%). In terms of maximum drawdown, FSMEX dropped -40.34% vs BST's -47.72%.

Which has better risk-adjusted returns?

BST currently has the higher Sharpe Ratio (2.59 vs -0.65), 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.