BUYW vs. TMAT

Last updated Aug 4, 2026

BUYW (Main Buywrite ETF) and TMAT (Main Thematic Innovation ETF) are both exchange-traded funds - BUYW is a Derivative Income fund actively managed by Main, while TMAT is a Technology Equities fund tracking the MSCI ACWI Index. BUYW is actively managed, while TMAT is passively managed. Over the past 3 years, BUYW returned 8.88%/yr vs 23.09%/yr for TMAT. Their 0.54 correlation means they have sometimes moved together and sometimes differently. BUYW charges 1.29%/yr vs 1.49%/yr for TMAT.

Performance

BUYW vs. TMAT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Main Buywrite ETF (BUYW) and Main Thematic Innovation ETF (TMAT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BUYW achieves a 5.08% return, which is significantly lower than TMAT's 13.29% return.

BUYW

• 1D: 0.28%
• 1M: 0.64%
• 6M: 4.41%
• YTD: 5.08%
• 1Y: 9.35%
• 3Y*: 8.88%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 9.97%

TMAT

• 1D: 2.29%
• 1M: -4.05%
• 6M: 15.14%
• YTD: 13.29%
• 1Y: 18.36%
• 3Y*: 23.09%
• 5Y*: 4.21%
• 10Y*: —
• ALL TIME*: 2.40%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BUYW Main Buywrite ETF	$5.71M	$4.95M	$4.82M
TMAT Main Thematic Innovation ETF	$1.51M	$950.56K	$631.95K

BUYW vs. TMAT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
BUYW Main Buywrite ETF	5.08%	9.08%	9.82%	12.80%	1.94%
TMAT Main Thematic Innovation ETF	13.29%	20.06%	27.20%	32.32%	-15.12%

Correlation

The correlation between BUYW and TMAT is 0.41, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.41
Correlation (3Y) Balances recent behavior with more history.	0.50
Correlation (All Time) Calculated using the full available price history since Sep 12, 2022	0.54

The correlation between BUYW and TMAT shifts across timeframes, from 0.41 (1 year) to 0.54 (all time), reflecting how their relationship changes across market environments.

BUYW vs. TMAT - Sectors Allocation Comparison

Sectors	BUYW	TMAT
Technology	25.9%	54.9%
Financial Services	15.0%	2.1%
Healthcare	13.8%	9.6%
Energy	12.4%	0.3%
Utilities	10.9%	2.0%
Communication Services	6.5%	2.4%
Consumer Cyclical	6.0%	1.4%
Industrials	4.6%	22.7%
Consumer Defensive	3.1%	-
Basic Materials	1.0%	9.1%
Real Estate	1.0%	-

Return for Risk

BUYW vs. TMAT — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

BUYW

BUYW Risk / Return Rank: 86
BUYW Sharpe Ratio Rank: 81
BUYW Sortino Ratio Rank: 84
BUYW Omega Ratio Rank: 84
BUYW Calmar Ratio Rank: 88
BUYW Martin Ratio Rank: 94

TMAT

TMAT Risk / Return Rank: 27
TMAT Sharpe Ratio Rank: 28
TMAT Sortino Ratio Rank: 27
TMAT Omega Ratio Rank: 26
TMAT Calmar Ratio Rank: 27
TMAT Martin Ratio Rank: 24

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BUYW vs. TMAT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Main Buywrite ETF (BUYW) and Main Thematic Innovation ETF (TMAT). 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.

	BUYW	TMAT	Difference
Sharpe ratio: Return per unit of total volatility	1.93	0.67	+1.26
Sortino ratio: Return per unit of downside risk	2.87	1.06	+1.81
Omega ratio: Gain probability vs. loss probability	1.37	1.13	+0.24
Calmar ratio: Return relative to maximum drawdown	3.63	0.85	+2.78
Martin ratio: Return relative to average drawdown	19.32	1.90	+17.42

BUYW vs. TMAT - Sharpe Ratio Comparison

The current BUYW Sharpe Ratio is 1.93, which is higher than the TMAT Sharpe Ratio of 0.67. The chart below compares the historical Sharpe Ratios of BUYW and TMAT, 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

BUYW vs. TMAT - Drawdown Comparison

The maximum BUYW drawdown since its inception was -9.36%, smaller than the maximum TMAT drawdown of -58.55%. Use the drawdown chart below to compare losses from any high point for BUYW and TMAT.

Drawdown Indicators

	BUYW	TMAT	Difference
Max Drawdown Largest peak-to-trough decline	-9.36%	-58.55%	+49.19%
Max Drawdown (1Y) Largest decline over 1 year	-2.59%	-21.63%	+19.04%
Max Drawdown (3Y) Largest decline over 3 years	-9.36%	-33.42%	+24.06%
Max Drawdown (5Y) Largest decline over 5 years	—	-51.86%	—
Current Drawdown Current decline from peak	0.00%	-9.85%	+9.85%
Average Drawdown Average peak-to-trough decline	-0.59%	-31.43%	+30.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.49%	9.71%	-9.22%

Volatility

BUYW vs. TMAT - Volatility Comparison

The current volatility for Main Buywrite ETF (BUYW) is 1.11%, while Main Thematic Innovation ETF (TMAT) has a volatility of 9.63%. This indicates that BUYW experiences smaller price fluctuations and is considered to be less risky than TMAT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BUYW	TMAT	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.11%	9.63%	-8.52%
Volatility (6M) Calculated over the trailing 6-month period	3.91%	21.26%	-17.35%
Volatility (1Y) Calculated over the trailing 1-year period	4.87%	27.48%	-22.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	8.33%	31.13%	-22.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.33%	30.83%	-22.50%

BUYW vs. TMAT - Expense Ratio Comparison

BUYW has a 1.29% expense ratio, which is lower than TMAT's 1.49% expense ratio.

Dividends

BUYW vs. TMAT - Dividend Comparison

BUYW's dividend yield for the trailing twelve months is around 5.90%, more than TMAT's 0.02% yield.

Position	TTM	2025	2024	2023	2022	2021
BUYW Main Buywrite ETF	5.90%	5.89%	5.93%	5.95%	0.50%	0.00%
TMAT Main Thematic Innovation ETF	0.02%	0.02%	0.00%	0.00%	0.34%	0.20%

Frequently Asked Questions

Can I hold both BUYW and TMAT in my portfolio?

BUYW and TMAT have a correlation of 0.41, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BUYW or TMAT?

TMAT has higher volatility (9.63%) compared to BUYW (1.11%). In terms of maximum drawdown, BUYW dropped -9.36% vs TMAT's -58.55%.

Which ETF is better, BUYW or TMAT?

On 3-year performance, TMAT leads with 23.09% vs 8.88% for BUYW. On fees, BUYW is cheaper at 1.29% per year. On volatility, BUYW has been the lower-risk option at 1.11%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BUYW or TMAT?

Over the 3-year period, TMAT has performed better with a 23.09% return vs 8.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BUYW or TMAT?

BUYW is cheaper with a 1.29% expense ratio, compared with 1.49% for TMAT.

Which ETF pays a higher dividend yield, BUYW or TMAT?

BUYW has the higher dividend yield at 5.90%, compared with 0.02% for TMAT.

What is the main difference between BUYW and TMAT?

BUYW is categorized as Derivative Income, while TMAT is Technology Equities. Their fees differ too: 1.29% for BUYW and 1.49% for TMAT.

Which has better risk-adjusted returns?

BUYW currently has the higher Sharpe Ratio (1.93 vs 0.67), 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.