MMKT vs. WEEK

Last updated Jun 4, 2026

MMKT (Texas Capital Government Money Market ETF) and WEEK (Roundhill Weekly T-Bill ETF) are both exchange-traded funds - MMKT is a Money Market fund actively managed by Texas Capital, while WEEK is a Ultrashort Bond fund actively managed by Roundhill. Both are actively managed. Over the past year, MMKT returned 3.81% vs 3.81% for WEEK. At a 0.07 correlation, their price movements are largely independent. MMKT charges 0.20%/yr vs 0.19%/yr for WEEK.

Performance

MMKT vs. WEEK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Texas Capital Government Money Market ETF (MMKT) and Roundhill Weekly T-Bill ETF (WEEK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

As of year-to-date, both investments have demonstrated similar returns, with MMKT at 1.44% and WEEK at 1.44%.

MMKT

• 1D: 0.01%
• 1M: 0.28%
• YTD: 1.44%
• 6M: 1.76%
• 1Y: 3.81%
• 3Y*: —
• 5Y*: —
• 10Y*: —

WEEK

• 1D: 0.02%
• 1M: 0.28%
• YTD: 1.44%
• 6M: 1.74%
• 1Y: 3.81%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MMKT vs. WEEK - Yearly Performance Comparison

	2026 (YTD)	2025
MMKT Texas Capital Government Money Market ETF	1.44%	3.37%
WEEK Roundhill Weekly T-Bill ETF	1.44%	3.37%

Correlation

The correlation between MMKT and WEEK is 0.05, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.05
Correlation (All Time) Calculated using the full available price history since Mar 7, 2025	0.07

Return for Risk

MMKT vs. WEEK — Risk / Return Rank

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

MMKT

MMKT Risk / Return Rank: 100
MMKT Sharpe Ratio Rank: 100
MMKT Sortino Ratio Rank: 100
MMKT Omega Ratio Rank: 100
MMKT Calmar Ratio Rank: 100
MMKT Martin Ratio Rank: 100

WEEK

WEEK Risk / Return Rank: 99
WEEK Sharpe Ratio Rank: 99
WEEK Sortino Ratio Rank: 99
WEEK Omega Ratio Rank: 99
WEEK Calmar Ratio Rank: 99
WEEK Martin Ratio Rank: 99

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.

MMKT vs. WEEK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Texas Capital Government Money Market ETF (MMKT) and Roundhill Weekly T-Bill ETF (WEEK). 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.

	MMKT	WEEK	Difference
Sharpe ratio: Return per unit of total volatility	16.49	9.29	+7.20
Sortino ratio: Return per unit of downside risk	62.61	19.14	+43.46
Omega ratio: Gain probability vs. loss probability	15.14	4.65	+10.49
Calmar ratio: Return relative to maximum drawdown	153.44	29.49	+123.95
Martin ratio: Return relative to average drawdown	910.67	263.82	+646.85
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MMKT vs. WEEK - Sharpe Ratio Comparison

The current MMKT Sharpe Ratio is 16.49, which is higher than the WEEK Sharpe Ratio of 9.29. The chart below compares the historical Sharpe Ratios of MMKT and WEEK, 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

	MMKT	WEEK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	16.49	9.29	+7.20
Sharpe Ratio (All Time) Calculated using the full available price history	17.60	10.05	+7.55

Drawdowns

MMKT vs. WEEK - Drawdown Comparison

The maximum MMKT drawdown since its inception was -0.04%, smaller than the maximum WEEK drawdown of -0.13%. Use the drawdown chart below to compare losses from any high point for MMKT and WEEK.

Drawdown Indicators

	MMKT	WEEK	Difference
Max Drawdown Largest peak-to-trough decline	-0.04%	-0.13%	+0.09%
Max Drawdown (1Y) Largest decline over 1 year	-0.02%	-0.13%	+0.11%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.00%	-0.01%	+0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.00%	0.01%	-0.01%

Volatility

MMKT vs. WEEK - Volatility Comparison

The current volatility for Texas Capital Government Money Market ETF (MMKT) is 0.05%, while Roundhill Weekly T-Bill ETF (WEEK) has a volatility of 0.07%. This indicates that MMKT experiences smaller price fluctuations and is considered to be less risky than WEEK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MMKT	WEEK	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.05%	0.07%	-0.02%
Volatility (6M) Calculated over the trailing 6-month period	0.13%	0.25%	-0.12%
Volatility (1Y) Calculated over the trailing 1-year period	0.23%	0.41%	-0.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.23%	0.39%	-0.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.23%	0.39%	-0.16%

MMKT vs. WEEK - Expense Ratio Comparison

MMKT has a 0.20% expense ratio, which is higher than WEEK's 0.19% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

MMKT vs. WEEK - Dividend Comparison

MMKT's dividend yield for the trailing twelve months is around 3.73%, which matches WEEK's 3.72% yield.

Position	TTM	2025	2024
MMKT Texas Capital Government Money Market ETF	3.73%	3.98%	1.07%
WEEK Roundhill Weekly T-Bill ETF	3.72%	3.27%	0.00%

Frequently Asked Questions

Can I hold both MMKT and WEEK in my portfolio?

MMKT and WEEK have a correlation of 0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MMKT or WEEK?

WEEK has higher volatility (0.07%) compared to MMKT (0.05%). In terms of maximum drawdown, MMKT dropped -0.04% vs WEEK's -0.13%.

Which ETF is better, MMKT or WEEK?

On 1-year performance, WEEK leads with 3.81% vs 3.81% for MMKT. On fees, WEEK is cheaper at 0.19% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MMKT or WEEK?

Over the 1-year period, WEEK has performed better with a 3.81% return vs 3.81%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MMKT or WEEK?

WEEK is cheaper with a 0.19% expense ratio, compared with 0.20% for MMKT.

Which ETF pays a higher dividend yield, MMKT or WEEK?

MMKT has the higher dividend yield at 3.73%, compared with 3.72% for WEEK.

What is the main difference between MMKT and WEEK?

MMKT is categorized as Money Market, while WEEK is Ultrashort Bond. They also come from different issuers: Texas Capital and Roundhill. Their fees differ too: 0.20% for MMKT and 0.19% for WEEK.

Which has better risk-adjusted returns?

MMKT currently has the higher Sharpe Ratio (16.49 vs 9.29), 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.