XLK vs. VOX

Last updated Apr 3, 2026

Compare and contrast key facts about State Street Technology Select Sector SPDR ETF (XLK) and Vanguard Communication Services ETF (VOX).

XLK and VOX are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. XLK is a passively managed fund by State Street that tracks the performance of the S&P Technology Select Sector Daily Capped 35/20 Index. It was launched on Dec 16, 1998. VOX is a passively managed fund by Vanguard that tracks the performance of the MSCI US Investable Market Telecommunication Services 25/50 Index. It was launched on Sep 23, 2004. Both XLK and VOX are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

XLK vs. VOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Technology Select Sector SPDR ETF (XLK) and Vanguard Communication Services ETF (VOX). The values are adjusted to include any dividend payments, if applicable.

XLK vs. VOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
XLK State Street Technology Select Sector SPDR ETF	-5.43%	24.61%	21.63%	56.02%	-27.73%	34.74%	43.62%	49.86%	-1.68%	34.26%
VOX Vanguard Communication Services ETF	-5.71%	26.27%	33.12%	44.81%	-38.85%	13.83%	29.12%	28.03%	-16.75%	-5.50%

Returns By Period

In the year-to-date period, XLK achieves a -5.43% return, which is significantly higher than VOX's -5.71% return. Over the past 10 years, XLK has outperformed VOX with an annualized return of 21.15%, while VOX has yielded a comparatively lower 8.56% annualized return.

XLK

• 1D: 0.80%
• 1M: -0.98%
• YTD: -5.43%
• 6M: -4.69%
• 1Y: 30.55%
• 3Y*: 22.58%
• 5Y*: 15.84%
• 10Y*: 21.15%

VOX

• 1D: 0.40%
• 1M: -4.97%
• YTD: -5.71%
• 6M: -1.59%
• 1Y: 23.07%
• 3Y*: 24.75%
• 5Y*: 7.68%
• 10Y*: 8.56%

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

XLK vs. VOX - Expense Ratio Comparison

XLK has a 0.08% expense ratio, which is lower than VOX's 0.10% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

VOX

Vanguard Communication Services ETF

XLK

State Street Technology Select Sector SPDR ETF

Return for Risk

XLK vs. VOX — Risk / Return Rank

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

XLK

XLK Risk / Return Rank: 61
XLK Sharpe Ratio Rank: 60
XLK Sortino Ratio Rank: 63
XLK Omega Ratio Rank: 60
XLK Calmar Ratio Rank: 67
XLK Martin Ratio Rank: 55

VOX

VOX Risk / Return Rank: 60
VOX Sharpe Ratio Rank: 60
VOX Sortino Ratio Rank: 65
VOX Omega Ratio Rank: 61
VOX Calmar Ratio Rank: 57
VOX Martin Ratio Rank: 55

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.

XLK vs. VOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Technology Select Sector SPDR ETF (XLK) and Vanguard Communication Services ETF (VOX). 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.

	XLK	VOX	Difference
Sharpe ratio Return per unit of total volatility	1.13	1.14	0.00
Sortino ratio Return per unit of downside risk	1.71	1.76	-0.04
Omega ratio Gain probability vs. loss probability	1.24	1.24	0.00
Calmar ratio Return relative to maximum drawdown	1.98	1.71	+0.27
Martin ratio Return relative to average drawdown	6.27	6.23	+0.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

XLK vs. VOX - Sharpe Ratio Comparison

The current XLK Sharpe Ratio is 1.13, which is comparable to the VOX Sharpe Ratio of 1.14. The chart below compares the historical Sharpe Ratios of XLK and VOX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	XLK	VOX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.13	1.14	0.00
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.64	0.36	+0.28
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.87	0.41	+0.46
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.43	-0.06

Correlation

The correlation between XLK and VOX is 0.72, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

XLK vs. VOX - Dividend Comparison

XLK's dividend yield for the trailing twelve months is around 0.56%, less than VOX's 1.04% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
XLK State Street Technology Select Sector SPDR ETF	0.56%	0.54%	0.66%	0.76%	1.04%	0.65%	0.92%	1.16%	1.60%	1.37%	1.74%	1.79%
VOX Vanguard Communication Services ETF	1.04%	0.95%	1.05%	1.03%	0.88%	0.93%	0.73%	0.90%	2.77%	3.83%	2.67%	3.55%

Drawdowns

XLK vs. VOX - Drawdown Comparison

The maximum XLK drawdown since its inception was -82.05%, which is greater than VOX's maximum drawdown of -57.18%. Use the drawdown chart below to compare losses from any high point for XLK and VOX.

Drawdown Indicators

	XLK	VOX	Difference
Max Drawdown Largest peak-to-trough decline	-82.05%	-57.18%	-24.87%
Max Drawdown (1Y) Largest decline over 1 year	-15.92%	-13.56%	-2.36%
Max Drawdown (5Y) Largest decline over 5 years	-33.56%	-46.76%	+13.20%
Max Drawdown (10Y) Largest decline over 10 years	-33.56%	-46.76%	+13.20%
Current Drawdown Current decline from peak	-10.32%	-8.87%	-1.45%
Average Drawdown Average peak-to-trough decline	-35.16%	-11.98%	-23.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.03%	3.73%	+1.30%

Volatility

XLK vs. VOX - Volatility Comparison

State Street Technology Select Sector SPDR ETF (XLK) has a higher volatility of 7.96% compared to Vanguard Communication Services ETF (VOX) at 6.43%. This indicates that XLK's price experiences larger fluctuations and is considered to be riskier than VOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	XLK	VOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.96%	6.43%	+1.53%
Volatility (6M) Calculated over the trailing 6-month period	16.48%	11.79%	+4.69%
Volatility (1Y) Calculated over the trailing 1-year period	27.05%	20.35%	+6.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.71%	21.17%	+3.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.33%	20.86%	+3.47%