BLCN vs. BUFX

Last updated Jun 24, 2026

BLCN (Siren ETF Trust Siren Nasdaq NexGen Economy ETF) and BUFX (FT Vest Laddered Enhance & Moderate Buffer ETF) are both exchange-traded funds - BLCN is a Large Cap Blend Equities fund tracking the Siren NASDAQ Blockchain Economy Index, while BUFX is a Defined Outcome fund managed by First Trust. At a 0.45 correlation, their price movements are largely independent. BLCN charges 0.68%/yr vs 0.96%/yr for BUFX.

Performance

BLCN vs. BUFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Siren ETF Trust Siren Nasdaq NexGen Economy ETF (BLCN) and FT Vest Laddered Enhance & Moderate Buffer ETF (BUFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BLCN achieves a 8.85% return, which is significantly higher than BUFX's 3.84% return.

BLCN

• 1D: -3.41%
• 1M: 6.21%
• YTD: 8.85%
• 6M: 5.98%
• 1Y: 25.25%
• 3Y*: 8.68%
• 5Y*: -10.03%
• 10Y*: —

BUFX

• 1D: -0.27%
• 1M: 0.09%
• YTD: 3.84%
• 6M: 3.89%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BLCN vs. BUFX - Yearly Performance Comparison

	2026 (YTD)	2025
BLCN Siren ETF Trust Siren Nasdaq NexGen Economy ETF	8.85%	11.47%
BUFX FT Vest Laddered Enhance & Moderate Buffer ETF	3.84%	5.43%

Correlation

The correlation between BLCN and BUFX is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jun 25, 2025	0.45

Return for Risk

BLCN vs. BUFX — Risk / Return Rank

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

BLCN

BLCN Risk / Return Rank: 20
BLCN Sharpe Ratio Rank: 21
BLCN Sortino Ratio Rank: 22
BLCN Omega Ratio Rank: 21
BLCN Calmar Ratio Rank: 20
BLCN Martin Ratio Rank: 18

BUFX

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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.

BLCN vs. BUFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Siren ETF Trust Siren Nasdaq NexGen Economy ETF (BLCN) and FT Vest Laddered Enhance & Moderate Buffer ETF (BUFX). 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.

	BLCN	BUFX	Difference
Sharpe ratio: Return per unit of total volatility	0.69	—	—
Sortino ratio: Return per unit of downside risk	1.18	—	—
Omega ratio: Gain probability vs. loss probability	1.14	—	—
Calmar ratio: Return relative to maximum drawdown	0.86	—	—
Martin ratio: Return relative to average drawdown	1.81	—	—

Drawdowns

BLCN vs. BUFX - Drawdown Comparison

The maximum BLCN drawdown since its inception was -67.51%, which is greater than BUFX's maximum drawdown of -2.87%. Use the drawdown chart below to compare losses from any high point for BLCN and BUFX.

Drawdown Indicators

	BLCN	BUFX	Difference
Max Drawdown Largest peak-to-trough decline	-67.51%	-2.87%	-64.64%
Max Drawdown (1Y) Largest decline over 1 year	-29.53%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-45.26%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-67.51%	—	—
Current Drawdown Current decline from peak	-47.17%	-0.59%	-46.58%
Average Drawdown Average peak-to-trough decline	-30.38%	-0.24%	-30.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.97%	—	—

Volatility

Volatility by Period

	BLCN	BUFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.35%	—	—
Volatility (6M) Calculated over the trailing 6-month period	27.56%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	36.88%	4.05%	+32.83%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.21%	4.05%	+31.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.32%	4.05%	+27.27%

BLCN vs. BUFX - Expense Ratio Comparison

BLCN has a 0.68% expense ratio, which is lower than BUFX's 0.96% expense ratio.

Dividends

BLCN vs. BUFX - Dividend Comparison

BLCN's dividend yield for the trailing twelve months is around 2.77%, while BUFX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
BLCN Siren ETF Trust Siren Nasdaq NexGen Economy ETF	2.77%	3.01%	0.67%	0.54%	1.28%	0.56%	0.58%	1.45%	1.16%
BUFX FT Vest Laddered Enhance & Moderate Buffer ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BLCN and BUFX in my portfolio?

BLCN and BUFX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BLCN or BUFX?

On fees, BLCN is cheaper at 0.68% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, BLCN or BUFX?

BLCN is cheaper with a 0.68% expense ratio, compared with 0.96% for BUFX.

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

BLCN has the higher dividend yield at 2.77%, compared with 0.00% for BUFX.

What is the main difference between BLCN and BUFX?

BLCN is categorized as Large Cap Blend Equities, while BUFX is Defined Outcome. They also come from different issuers: SRN Advisors and First Trust. Their fees differ too: 0.68% for BLCN and 0.96% for BUFX.