BLOK vs. VOX

Last updated Jun 4, 2026

BLOK (Amplify Transformational Data Sharing ETF) and VOX (Vanguard Communication Services ETF) are both Technology Equities funds. BLOK is actively managed, while VOX is passively managed. Over the past 5 years, BLOK returned 11.96%/yr vs 7.58%/yr for VOX. A 0.63 correlation means they provide meaningful diversification when combined. BLOK charges 0.71%/yr vs 0.10%/yr for VOX.

Performance

BLOK vs. VOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amplify Transformational Data Sharing ETF (BLOK) 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, BLOK achieves a 16.21% return, which is significantly higher than VOX's -1.38% return.

BLOK

• 1D: -2.62%
• 1M: 7.72%
• YTD: 16.21%
• 6M: 7.24%
• 1Y: 30.79%
• 3Y*: 51.34%
• 5Y*: 11.96%
• 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)

BLOK vs. VOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BLOK Amplify Transformational Data Sharing ETF	16.21%	32.64%	53.12%	99.62%	-62.36%	30.76%	90.17%	29.54%	-25.97%
VOX Vanguard Communication Services ETF	-1.38%	26.27%	33.12%	44.81%	-38.85%	13.83%	29.12%	28.03%	-16.05%

Correlation

The correlation between BLOK and VOX is 0.52, 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	0.52
Correlation (3Y) Calculated over the trailing 3-year period	0.57
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (All Time) Calculated using the full available price history since Jan 18, 2018	0.63

The correlation between BLOK and VOX shifts across timeframes, from 0.52 (1 year) to 0.65 (5 years), reflecting how their relationship changes across market environments.

BLOK vs. VOX - Sectors Allocation Comparison

Sectors	BLOK	VOX
Financial Services	55.3%	-
Technology	31.8%	1.2%
Consumer Cyclical	6.7%	0.2%
Communication Services	5.2%	98.4%
Industrials	1.0%	0.0%
Real Estate	0.0%	0.1%
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	-
Healthcare	-	0.0%
Utilities	-	-

Return for Risk

BLOK vs. VOX — Risk / Return Rank

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

BLOK

BLOK Risk / Return Rank: 21
BLOK Sharpe Ratio Rank: 23
BLOK Sortino Ratio Rank: 23
BLOK Omega Ratio Rank: 23
BLOK Calmar Ratio Rank: 20
BLOK Martin Ratio Rank: 18

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.

BLOK vs. VOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amplify Transformational Data Sharing ETF (BLOK) 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.

	BLOK	VOX	Difference
Sharpe ratio: Return per unit of total volatility	0.81	1.34	-0.53
Sortino ratio: Return per unit of downside risk	1.30	2.00	-0.70
Omega ratio: Gain probability vs. loss probability	1.16	1.24	-0.08
Calmar ratio: Return relative to maximum drawdown	0.87	1.52	-0.65
Martin ratio: Return relative to average drawdown	1.90	5.83	-3.92
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BLOK vs. VOX - Sharpe Ratio Comparison

The current BLOK Sharpe Ratio is 0.81, which is lower than the VOX Sharpe Ratio of 1.34. The chart below compares the historical Sharpe Ratios of BLOK 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

	BLOK	VOX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.81	1.34	-0.53
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.28	0.36	-0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.45	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.43	+0.05

Drawdowns

BLOK vs. VOX - Drawdown Comparison

The maximum BLOK drawdown since its inception was -73.33%, which is greater than VOX's maximum drawdown of -57.18%. Use the drawdown chart below to compare losses from any high point for BLOK and VOX.

Drawdown Indicators

	BLOK	VOX	Difference
Max Drawdown Largest peak-to-trough decline	-73.33%	-57.18%	-16.15%
Max Drawdown (1Y) Largest decline over 1 year	-35.64%	-13.56%	-22.08%
Max Drawdown (3Y) Largest decline over 3 years	-35.64%	-21.15%	-14.49%
Max Drawdown (5Y) Largest decline over 5 years	-73.33%	-46.76%	-26.57%
Max Drawdown (10Y) Largest decline over 10 years	—	-46.76%	—
Current Drawdown Current decline from peak	-10.16%	-4.70%	-5.46%
Average Drawdown Average peak-to-trough decline	-26.08%	-11.91%	-14.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	16.23%	3.54%	+12.69%

Volatility

BLOK vs. VOX - Volatility Comparison

Amplify Transformational Data Sharing ETF (BLOK) has a higher volatility of 10.59% compared to Vanguard Communication Services ETF (VOX) at 4.24%. This indicates that BLOK'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

	BLOK	VOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.59%	4.24%	+6.35%
Volatility (6M) Calculated over the trailing 6-month period	28.55%	11.16%	+17.39%
Volatility (1Y) Calculated over the trailing 1-year period	38.29%	15.45%	+22.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	42.36%	21.15%	+21.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.97%	20.89%	+18.08%

BLOK vs. VOX - Expense Ratio Comparison

BLOK has a 0.71% expense ratio, which is higher than VOX's 0.10% expense ratio.

Dividends

BLOK vs. VOX - Dividend Comparison

BLOK's dividend yield for the trailing twelve months is around 0.62%, less than VOX's 1.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BLOK Amplify Transformational Data Sharing ETF	0.62%	0.72%	6.00%	1.15%	0.00%	14.31%	1.88%	2.05%	1.30%	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 BLOK and VOX in my portfolio?

BLOK and VOX have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BLOK or VOX?

BLOK has higher volatility (10.59%) compared to VOX (4.24%). In terms of maximum drawdown, BLOK dropped -73.33% vs VOX's -57.18%.

Which ETF is better, BLOK or VOX?

On 5-year performance, BLOK leads with 11.96% vs 7.58% 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, BLOK or VOX?

Over the 5-year period, BLOK has performed better with a 11.96% return vs 7.58%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BLOK or VOX?

VOX is cheaper with a 0.10% expense ratio, compared with 0.71% for BLOK.

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

VOX has the higher dividend yield at 1.00%, compared with 0.62% for BLOK.

What is the main difference between BLOK and VOX?

They also come from different issuers: Amplify and Vanguard. Their fees differ too: 0.71% for BLOK and 0.10% for VOX.

Which has better risk-adjusted returns?

VOX currently has the higher Sharpe Ratio (1.34 vs 0.81), 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.