ROBO vs. BLCN

Last updated Jun 4, 2026

ROBO (ROBO Global Robotics & Automation Index ETF) and BLCN (Siren ETF Trust Siren Nasdaq NexGen Economy ETF) are both exchange-traded funds - ROBO is a Robotics fund tracking the ROBO Global Robotics and Automation TR Index, while BLCN is a Large Cap Blend Equities fund tracking the Siren NASDAQ Blockchain Economy Index. Both are passively managed. Over the past 5 years, ROBO returned 7.13%/yr vs -9.77%/yr for BLCN. A 0.69 correlation means they provide meaningful diversification when combined. ROBO charges 0.95%/yr vs 0.68%/yr for BLCN.

Performance

ROBO vs. BLCN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ROBO Global Robotics & Automation Index ETF (ROBO) and Siren ETF Trust Siren Nasdaq NexGen Economy ETF (BLCN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ROBO achieves a 29.33% return, which is significantly higher than BLCN's 13.09% return.

ROBO

• 1D: -0.77%
• 1M: 10.56%
• YTD: 29.33%
• 6M: 30.40%
• 1Y: 59.43%
• 3Y*: 17.13%
• 5Y*: 7.13%
• 10Y*: 13.65%

BLCN

• 1D: 0.39%
• 1M: 10.42%
• YTD: 13.09%
• 6M: 10.14%
• 1Y: 27.10%
• 3Y*: 9.50%
• 5Y*: -9.77%
• 10Y*: —

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

ROBO vs. BLCN - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
ROBO ROBO Global Robotics & Automation Index ETF	29.33%	23.71%	-1.28%	23.74%	-33.92%	15.34%	45.26%	29.51%	-27.90%
BLCN Siren ETF Trust Siren Nasdaq NexGen Economy ETF	13.09%	-3.69%	5.62%	21.09%	-51.76%	4.86%	60.60%	33.94%	-19.15%

Correlation

The correlation between ROBO and BLCN is 0.51, 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	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.51
Correlation (5Y) Calculated over the trailing 5-year period	0.63
Correlation (All Time) Calculated using the full available price history since Jan 18, 2018	0.69

The correlation between ROBO and BLCN shifts across timeframes, from 0.51 (1 year) to 0.69 (all time), reflecting how their relationship changes across market environments.

ROBO vs. BLCN - Sectors Allocation Comparison

Sectors	ROBO	BLCN
Industrials	46.8%	16.0%
Technology	41.9%	57.1%
Healthcare	4.9%	-
Consumer Cyclical	3.1%	4.4%
Financial Services	2.2%	7.3%
Consumer Defensive	1.3%	-
Communication Services	1.1%	3.5%
Basic Materials	-	4.4%
Energy	-	-
Real Estate	-	-
Utilities	-	4.2%

Return for Risk

ROBO vs. BLCN — Risk / Return Rank

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

ROBO

ROBO Risk / Return Rank: 72
ROBO Sharpe Ratio Rank: 78
ROBO Sortino Ratio Rank: 74
ROBO Omega Ratio Rank: 70
ROBO Calmar Ratio Rank: 68
ROBO Martin Ratio Rank: 72

BLCN

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

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.

ROBO vs. BLCN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ROBO Global Robotics & Automation Index ETF (ROBO) and Siren ETF Trust Siren Nasdaq NexGen Economy ETF (BLCN). 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.

	ROBO	BLCN	Difference
Sharpe ratio: Return per unit of total volatility	2.60	0.76	+1.84
Sortino ratio: Return per unit of downside risk	3.41	1.25	+2.15
Omega ratio: Gain probability vs. loss probability	1.43	1.15	+0.28
Calmar ratio: Return relative to maximum drawdown	3.44	0.92	+2.52
Martin ratio: Return relative to average drawdown	13.77	1.97	+11.81
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ROBO vs. BLCN - Sharpe Ratio Comparison

The current ROBO Sharpe Ratio is 2.60, which is higher than the BLCN Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of ROBO and BLCN, 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

	ROBO	BLCN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.60	0.76	+1.84
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.30	-0.28	+0.58
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.50	0.08	+0.42

Drawdowns

ROBO vs. BLCN - Drawdown Comparison

The maximum ROBO drawdown since its inception was -43.65%, smaller than the maximum BLCN drawdown of -67.51%. Use the drawdown chart below to compare losses from any high point for ROBO and BLCN.

Drawdown Indicators

	ROBO	BLCN	Difference
Max Drawdown Largest peak-to-trough decline	-43.65%	-67.51%	+23.86%
Max Drawdown (1Y) Largest decline over 1 year	-17.35%	-29.53%	+12.18%
Max Drawdown (3Y) Largest decline over 3 years	-27.92%	-45.26%	+17.34%
Max Drawdown (5Y) Largest decline over 5 years	-43.65%	-67.51%	+23.86%
Max Drawdown (10Y) Largest decline over 10 years	-43.65%	—	—
Current Drawdown Current decline from peak	-0.77%	-45.11%	+44.34%
Average Drawdown Average peak-to-trough decline	-12.93%	-30.29%	+17.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.33%	13.82%	-9.49%

Volatility

ROBO vs. BLCN - Volatility Comparison

The current volatility for ROBO Global Robotics & Automation Index ETF (ROBO) is 7.64%, while Siren ETF Trust Siren Nasdaq NexGen Economy ETF (BLCN) has a volatility of 14.45%. This indicates that ROBO experiences smaller price fluctuations and is considered to be less risky than BLCN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ROBO	BLCN	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.64%	14.45%	-6.81%
Volatility (6M) Calculated over the trailing 6-month period	18.06%	29.11%	-11.05%
Volatility (1Y) Calculated over the trailing 1-year period	23.01%	36.03%	-13.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.63%	34.93%	-11.30%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.16%	31.22%	-8.06%

ROBO vs. BLCN - Expense Ratio Comparison

ROBO has a 0.95% expense ratio, which is higher than BLCN's 0.68% expense ratio.

Dividends

ROBO vs. BLCN - Dividend Comparison

ROBO's dividend yield for the trailing twelve months is around 0.33%, less than BLCN's 2.66% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BLCN Siren ETF Trust Siren Nasdaq NexGen Economy ETF	2.66%	3.01%	0.67%	0.54%	1.28%	0.56%	0.58%	1.45%	1.16%	0.00%	0.00%	0.00%
ROBO ROBO Global Robotics & Automation Index ETF	0.33%	0.42%	0.55%	0.05%	0.00%	0.18%	0.20%	0.37%	0.37%	0.02%	0.19%	0.28%

Frequently Asked Questions

Can I hold both ROBO and BLCN in my portfolio?

ROBO and BLCN have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ROBO or BLCN?

BLCN has higher volatility (14.45%) compared to ROBO (7.64%). In terms of maximum drawdown, ROBO dropped -43.65% vs BLCN's -67.51%.

Which ETF is better, ROBO or BLCN?

On 5-year performance, ROBO leads with 7.13% vs -9.77% for BLCN. On fees, BLCN is cheaper at 0.68% per year. On volatility, ROBO has been the lower-risk option at 7.64%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ROBO or BLCN?

Over the 5-year period, ROBO has performed better with a 7.13% return vs -9.77%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ROBO or BLCN?

BLCN is cheaper with a 0.68% expense ratio, compared with 0.95% for ROBO.

Which ETF pays a higher dividend yield, ROBO or BLCN?

BLCN has the higher dividend yield at 2.66%, compared with 0.33% for ROBO.

What is the main difference between ROBO and BLCN?

ROBO is categorized as Robotics, while BLCN is Large Cap Blend Equities. ROBO tracks ROBO Global Robotics and Automation TR Index, while BLCN tracks Siren NASDAQ Blockchain Economy Index. They also come from different issuers: Exchange Traded Concepts and SRN Advisors. Their fees differ too: 0.95% for ROBO and 0.68% for BLCN.

Which has better risk-adjusted returns?

ROBO currently has the higher Sharpe Ratio (2.60 vs 0.76), 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.