BLOK vs. GREK

Last updated Jun 13, 2026

BLOK (Amplify Blockchain Technology ETF) and GREK (Global X MSCI Greece ETF) are both exchange-traded funds - BLOK is a Blockchain fund actively managed by Amplify, while GREK is a Emerging Markets Equities fund tracking the MSCI All Greece Select 25-50. BLOK is actively managed, while GREK is passively managed. Over the past 5 years, BLOK returned 11.50%/yr vs 24.30%/yr for GREK. At a 0.44 correlation, their price movements are largely independent. BLOK charges 0.70%/yr vs 0.58%/yr for GREK.

Performance

BLOK vs. GREK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amplify Blockchain Technology ETF (BLOK) and Global X MSCI Greece ETF (GREK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BLOK achieves a 12.57% return, which is significantly lower than GREK's 15.45% return.

BLOK

• 1D: 1.33%
• 1M: -0.28%
• YTD: 12.57%
• 6M: 5.60%
• 1Y: 24.42%
• 3Y*: 50.68%
• 5Y*: 11.50%
• 10Y*: —

GREK

• 1D: 0.87%
• 1M: 5.63%
• YTD: 15.45%
• 6M: 15.54%
• 1Y: 38.63%
• 3Y*: 32.67%
• 5Y*: 24.30%
• 10Y*: 16.01%

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

BLOK vs. GREK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BLOK Amplify Blockchain Technology ETF	12.57%	32.64%	53.12%	99.62%	-62.36%	30.76%	90.17%	29.54%	-25.38%
GREK Global X MSCI Greece ETF	15.45%	76.11%	9.53%	42.72%	3.64%	6.14%	-13.89%	50.20%	-35.33%

Correlation

The correlation between BLOK and GREK is 0.40, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.40
Correlation (3Y) Calculated over the trailing 3-year period	0.41
Correlation (5Y) Calculated over the trailing 5-year period	0.46
Correlation (All Time) Calculated using the full available price history since Jan 17, 2018	0.44

BLOK vs. GREK - Sectors Allocation Comparison

Sectors	BLOK	GREK
Financial Services	55.3%	47.1%
Technology	31.8%	-
Consumer Cyclical	6.7%	9.6%
Communication Services	5.2%	4.6%
Industrials	1.0%	13.5%
Real Estate	0.0%	1.0%
Basic Materials	-	3.2%
Consumer Defensive	-	1.1%
Energy	-	8.4%
Healthcare	-	-
Utilities	-	11.6%

Return for Risk

BLOK vs. GREK — Risk / Return Rank

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

BLOK

BLOK Risk / Return Rank: 20
BLOK Sharpe Ratio Rank: 21
BLOK Sortino Ratio Rank: 22
BLOK Omega Ratio Rank: 22
BLOK Calmar Ratio Rank: 19
BLOK Martin Ratio Rank: 17

GREK

GREK Risk / Return Rank: 49
GREK Sharpe Ratio Rank: 54
GREK Sortino Ratio Rank: 57
GREK Omega Ratio Rank: 51
GREK Calmar Ratio Rank: 41
GREK Martin Ratio Rank: 40

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. GREK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amplify Blockchain Technology ETF (BLOK) and Global X MSCI Greece ETF (GREK). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	BLOK	GREK	Difference
Sharpe ratio: Return per unit of total volatility	0.63	1.59	-0.97
Sortino ratio: Return per unit of downside risk	1.08	2.38	-1.30
Omega ratio: Gain probability vs. loss probability	1.13	1.28	-0.15
Calmar ratio: Return relative to maximum drawdown	0.69	1.82	-1.13
Martin ratio: Return relative to average drawdown	1.49	5.62	-4.13

BLOK vs. GREK - Sharpe Ratio Comparison

The current BLOK Sharpe Ratio is 0.63, which is lower than the GREK Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of BLOK and GREK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BLOK vs. GREK - Drawdown Comparison

The maximum BLOK drawdown since its inception was -73.33%, smaller than the maximum GREK drawdown of -79.50%. Use the drawdown chart below to compare losses from any high point for BLOK and GREK.

Drawdown Indicators

	BLOK	GREK	Difference
Max Drawdown Largest peak-to-trough decline	-73.33%	-79.50%	+6.17%
Max Drawdown (1Y) Largest decline over 1 year	-35.64%	-21.32%	-14.32%
Max Drawdown (3Y) Largest decline over 3 years	-35.64%	-22.63%	-13.01%
Max Drawdown (5Y) Largest decline over 5 years	-73.33%	-30.46%	-42.87%
Max Drawdown (10Y) Largest decline over 10 years	—	-57.04%	—
Current Drawdown Current decline from peak	-12.97%	-1.44%	-11.53%
Average Drawdown Average peak-to-trough decline	-26.03%	-45.25%	+19.22%
Ulcer Index Depth and duration of drawdowns from previous peaks	16.41%	6.90%	+9.51%

Volatility

BLOK vs. GREK - Volatility Comparison

Amplify Blockchain Technology ETF (BLOK) has a higher volatility of 13.34% compared to Global X MSCI Greece ETF (GREK) at 8.69%. This indicates that BLOK's price experiences larger fluctuations and is considered to be riskier than GREK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BLOK	GREK	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.34%	8.69%	+4.65%
Volatility (6M) Calculated over the trailing 6-month period	30.02%	20.65%	+9.37%
Volatility (1Y) Calculated over the trailing 1-year period	39.18%	24.35%	+14.83%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	42.53%	24.44%	+18.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	39.05%	29.71%	+9.34%

BLOK vs. GREK - Expense Ratio Comparison

BLOK has a 0.70% expense ratio, which is higher than GREK's 0.58% expense ratio.

Dividends

BLOK vs. GREK - Dividend Comparison

BLOK's dividend yield for the trailing twelve months is around 0.64%, less than GREK's 3.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BLOK Amplify Blockchain Technology ETF	0.64%	0.72%	6.00%	1.15%	0.00%	14.31%	1.88%	2.05%	1.30%	0.00%	0.00%	0.00%
GREK Global X MSCI Greece ETF	3.00%	3.46%	4.63%	2.61%	2.82%	2.16%	2.62%	2.25%	2.41%	2.13%	1.95%	1.52%

Frequently Asked Questions

Can I hold both BLOK and GREK in my portfolio?

BLOK and GREK have a correlation of 0.40, 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 GREK?

BLOK has higher volatility (13.34%) compared to GREK (8.69%). In terms of maximum drawdown, BLOK dropped -73.33% vs GREK's -79.50%.

Which ETF is better, BLOK or GREK?

On 5-year performance, GREK leads with 24.30% vs 11.50% for BLOK. On fees, GREK is cheaper at 0.58% per year. On volatility, GREK has been the lower-risk option at 8.69%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BLOK or GREK?

Over the 5-year period, GREK has performed better with a 24.30% return vs 11.50%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BLOK or GREK?

GREK is cheaper with a 0.58% expense ratio, compared with 0.70% for BLOK.

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

GREK has the higher dividend yield at 3.00%, compared with 0.64% for BLOK.

What is the main difference between BLOK and GREK?

BLOK is categorized as Blockchain, while GREK is Emerging Markets Equities. They also come from different issuers: Amplify and Global X. Their fees differ too: 0.70% for BLOK and 0.58% for GREK.

Which has better risk-adjusted returns?

GREK currently has the higher Sharpe Ratio (1.59 vs 0.63), 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.