FBSOX vs. AAIZX

Last updated Jun 5, 2026

FBSOX (Fidelity Select IT Services Portfolio) and AAIZX (Alger AI Enablers & Adopters Z) are both Technology Equities funds. Over the past year, FBSOX returned -20.06% vs 61.88% for AAIZX. At a 0.46 correlation, their price movements are largely independent. FBSOX charges 0.70%/yr vs 0.55%/yr for AAIZX.

Performance

FBSOX vs. AAIZX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Select IT Services Portfolio (FBSOX) and Alger AI Enablers & Adopters Z (AAIZX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FBSOX achieves a -7.38% return, which is significantly lower than AAIZX's 26.36% return.

FBSOX

• 1D: -3.33%
• 1M: 5.50%
• YTD: -7.38%
• 6M: -11.85%
• 1Y: -20.06%
• 3Y*: 3.22%
• 5Y*: -3.59%
• 10Y*: 8.69%

AAIZX

• 1D: -1.31%
• 1M: 11.39%
• YTD: 26.36%
• 6M: 25.19%
• 1Y: 61.88%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FBSOX vs. AAIZX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FBSOX Fidelity Select IT Services Portfolio	-7.38%	-9.19%	10.74%
AAIZX Alger AI Enablers & Adopters Z	26.36%	41.00%	33.76%

Correlation

The correlation between FBSOX and AAIZX is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (All Time) Calculated using the full available price history since Apr 9, 2024	0.46

Return for Risk

FBSOX vs. AAIZX — Risk / Return Rank

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

FBSOX

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

AAIZX

AAIZX Risk / Return Rank: 72
AAIZX Sharpe Ratio Rank: 87
AAIZX Sortino Ratio Rank: 69
AAIZX Omega Ratio Rank: 65
AAIZX Calmar Ratio Rank: 81
AAIZX Martin Ratio Rank: 56

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.

FBSOX vs. AAIZX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select IT Services Portfolio (FBSOX) and Alger AI Enablers & Adopters Z (AAIZX). 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.

	FBSOX	AAIZX	Difference
Sharpe ratio: Return per unit of total volatility	-0.88	2.86	-3.75
Sortino ratio: Return per unit of downside risk	-1.09	3.46	-4.55
Omega ratio: Gain probability vs. loss probability	0.86	1.45	-0.59
Calmar ratio: Return relative to maximum drawdown	-0.60	3.66	-4.26
Martin ratio: Return relative to average drawdown	-1.14	11.13	-12.27
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FBSOX vs. AAIZX - Sharpe Ratio Comparison

The current FBSOX Sharpe Ratio is -0.88, which is lower than the AAIZX Sharpe Ratio of 2.86. The chart below compares the historical Sharpe Ratios of FBSOX and AAIZX, 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

	FBSOX	AAIZX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.88	2.86	-3.75
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.16	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.38	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.49	1.84	-1.34

Drawdowns

FBSOX vs. AAIZX - Drawdown Comparison

The maximum FBSOX drawdown since its inception was -50.01%, which is greater than AAIZX's maximum drawdown of -29.00%. Use the drawdown chart below to compare losses from any high point for FBSOX and AAIZX.

Drawdown Indicators

	FBSOX	AAIZX	Difference
Max Drawdown Largest peak-to-trough decline	-50.01%	-29.00%	-21.01%
Max Drawdown (1Y) Largest decline over 1 year	-32.78%	-17.47%	-15.31%
Max Drawdown (3Y) Largest decline over 3 years	-35.31%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-42.28%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-42.28%	—	—
Current Drawdown Current decline from peak	-24.60%	-1.31%	-23.29%
Average Drawdown Average peak-to-trough decline	-10.19%	-4.99%	-5.20%
Ulcer Index Depth and duration of drawdowns from previous peaks	17.36%	5.73%	+11.63%

Volatility

FBSOX vs. AAIZX - Volatility Comparison

Fidelity Select IT Services Portfolio (FBSOX) has a higher volatility of 8.10% compared to Alger AI Enablers & Adopters Z (AAIZX) at 5.56%. This indicates that FBSOX's price experiences larger fluctuations and is considered to be riskier than AAIZX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FBSOX	AAIZX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.10%	5.56%	+2.54%
Volatility (6M) Calculated over the trailing 6-month period	18.96%	16.82%	+2.14%
Volatility (1Y) Calculated over the trailing 1-year period	22.44%	22.35%	+0.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.63%	27.44%	-4.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.89%	27.44%	-4.55%

FBSOX vs. AAIZX - Expense Ratio Comparison

FBSOX has a 0.70% expense ratio, which is higher than AAIZX's 0.55% expense ratio.

Dividends

FBSOX vs. AAIZX - Dividend Comparison

FBSOX's dividend yield for the trailing twelve months is around 9.81%, more than AAIZX's 5.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAIZX Alger AI Enablers & Adopters Z	5.00%	6.31%	4.44%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
FBSOX Fidelity Select IT Services Portfolio	9.81%	14.07%	18.34%	3.81%	14.40%	15.64%	5.27%	2.30%	4.97%	3.10%	0.32%	3.87%

Frequently Asked Questions

Can I hold both FBSOX and AAIZX in my portfolio?

FBSOX and AAIZX have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FBSOX or AAIZX?

FBSOX has higher volatility (8.10%) compared to AAIZX (5.56%). In terms of maximum drawdown, FBSOX dropped -50.01% vs AAIZX's -29.00%.

Which has better risk-adjusted returns?

AAIZX currently has the higher Sharpe Ratio (2.86 vs -0.88), 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.