CHAT vs. VOX

Last updated Jun 4, 2026

CHAT (Roundhill Generative AI & Technology ETF) and VOX (Vanguard Communication Services ETF) are both Technology Equities funds. CHAT is actively managed, while VOX is passively managed. Over the past 3 years, CHAT returned 55.51%/yr vs 24.02%/yr for VOX. A 0.65 correlation means they provide meaningful diversification when combined. CHAT charges 0.75%/yr vs 0.10%/yr for VOX.

Performance

CHAT vs. VOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill Generative AI & Technology ETF (CHAT) and Vanguard Communication Services ETF (VOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CHAT achieves a 74.30% return, which is significantly higher than VOX's -1.38% return.

CHAT

• 1D: -0.66%
• 1M: 27.78%
• YTD: 74.30%
• 6M: 73.13%
• 1Y: 144.01%
• 3Y*: 55.51%
• 5Y*: —
• 10Y*: —

VOX

• 1D: -0.84%
• 1M: -2.77%
• YTD: -1.38%
• 6M: 0.47%
• 1Y: 20.55%
• 3Y*: 24.02%
• 5Y*: 7.58%
• 10Y*: 9.30%

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

CHAT vs. VOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
CHAT Roundhill Generative AI & Technology ETF	74.30%	49.85%	30.98%	19.23%
VOX Vanguard Communication Services ETF	-1.38%	26.27%	33.12%	16.92%

Correlation

The correlation between CHAT and VOX is 0.50, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (All Time) Calculated using the full available price history since May 19, 2023	0.65

The correlation between CHAT and VOX shifts across timeframes, from 0.50 (1 year) to 0.65 (all time), reflecting how their relationship changes across market environments.

CHAT vs. VOX - Sectors Allocation Comparison

Sectors	CHAT	VOX
Technology	76.5%	1.2%
Communication Services	16.6%	98.4%
Consumer Cyclical	5.6%	0.2%
Industrials	0.8%	0.0%
Financial Services	0.0%	-
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	-
Healthcare	-	0.0%
Real Estate	-	0.1%
Utilities	-	-

Return for Risk

CHAT vs. VOX — Risk / Return Rank

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

CHAT

CHAT Risk / Return Rank: 94
CHAT Sharpe Ratio Rank: 97
CHAT Sortino Ratio Rank: 94
CHAT Omega Ratio Rank: 93
CHAT Calmar Ratio Rank: 96
CHAT Martin Ratio Rank: 94

VOX

VOX Risk / Return Rank: 35
VOX Sharpe Ratio Rank: 36
VOX Sortino Ratio Rank: 38
VOX Omega Ratio Rank: 35
VOX Calmar Ratio Rank: 30
VOX Martin Ratio Rank: 37

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.

CHAT vs. VOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Generative AI & Technology ETF (CHAT) 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.

	CHAT	VOX	Difference
Sharpe ratio: Return per unit of total volatility	4.72	1.34	+3.39
Sortino ratio: Return per unit of downside risk	4.86	2.00	+2.86
Omega ratio: Gain probability vs. loss probability	1.65	1.24	+0.42
Calmar ratio: Return relative to maximum drawdown	8.90	1.52	+7.38
Martin ratio: Return relative to average drawdown	26.26	5.83	+20.43
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CHAT vs. VOX - Sharpe Ratio Comparison

The current CHAT Sharpe Ratio is 4.72, which is higher than the VOX Sharpe Ratio of 1.34. The chart below compares the historical Sharpe Ratios of CHAT and VOX, 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

	CHAT	VOX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	4.72	1.34	+3.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.36	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.45	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.98	0.43	+1.55

Drawdowns

CHAT vs. VOX - Drawdown Comparison

The maximum CHAT drawdown since its inception was -31.34%, smaller than the maximum VOX drawdown of -57.18%. Use the drawdown chart below to compare losses from any high point for CHAT and VOX.

Drawdown Indicators

	CHAT	VOX	Difference
Max Drawdown Largest peak-to-trough decline	-31.34%	-57.18%	+25.84%
Max Drawdown (1Y) Largest decline over 1 year	-16.28%	-13.56%	-2.72%
Max Drawdown (3Y) Largest decline over 3 years	-31.34%	-21.15%	-10.19%
Max Drawdown (5Y) Largest decline over 5 years	—	-46.76%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-46.76%	—
Current Drawdown Current decline from peak	-0.66%	-4.70%	+4.04%
Average Drawdown Average peak-to-trough decline	-5.35%	-11.91%	+6.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.51%	3.54%	+1.97%

Volatility

CHAT vs. VOX - Volatility Comparison

Roundhill Generative AI & Technology ETF (CHAT) has a higher volatility of 11.70% compared to Vanguard Communication Services ETF (VOX) at 4.24%. This indicates that CHAT'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

	CHAT	VOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.70%	4.24%	+7.46%
Volatility (6M) Calculated over the trailing 6-month period	24.62%	11.16%	+13.46%
Volatility (1Y) Calculated over the trailing 1-year period	30.74%	15.45%	+15.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.90%	21.15%	+8.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.90%	20.89%	+9.01%

CHAT vs. VOX - Expense Ratio Comparison

CHAT has a 0.75% expense ratio, which is higher than VOX's 0.10% expense ratio.

Dividends

CHAT vs. VOX - Dividend Comparison

CHAT's dividend yield for the trailing twelve months is around 1.64%, more than VOX's 1.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CHAT Roundhill Generative AI & Technology ETF	1.64%	2.85%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VOX Vanguard Communication Services ETF	1.00%	0.95%	1.05%	1.03%	0.88%	0.93%	0.73%	0.90%	2.77%	3.83%	2.67%	3.55%

Frequently Asked Questions

Can I hold both CHAT and VOX in my portfolio?

CHAT and VOX have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CHAT or VOX?

CHAT has higher volatility (11.70%) compared to VOX (4.24%). In terms of maximum drawdown, CHAT dropped -31.34% vs VOX's -57.18%.

Which ETF is better, CHAT or VOX?

On 3-year performance, CHAT leads with 55.51% vs 24.02% for VOX. On fees, VOX is cheaper at 0.10% per year. On volatility, VOX has been the lower-risk option at 4.24%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CHAT or VOX?

Over the 3-year period, CHAT has performed better with a 55.51% return vs 24.02%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CHAT or VOX?

VOX is cheaper with a 0.10% expense ratio, compared with 0.75% for CHAT.

Which ETF pays a higher dividend yield, CHAT or VOX?

CHAT has the higher dividend yield at 1.64%, compared with 1.00% for VOX.

What is the main difference between CHAT and VOX?

They also come from different issuers: Roundhill and Vanguard. Their fees differ too: 0.75% for CHAT and 0.10% for VOX.

Which has better risk-adjusted returns?

CHAT currently has the higher Sharpe Ratio (4.72 vs 1.34), 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.