SNSXX vs. VMFXX

Last updated Jun 24, 2026

SNSXX (Schwab U.S. Treasury Money Fund) and VMFXX (Vanguard Federal Money Market Fund) are both Money Market funds. Over the past 5 years, SNSXX returned 1.38%/yr vs 3.02%/yr for VMFXX. A 0.65 correlation means they provide meaningful diversification when combined. SNSXX charges 0.34%/yr vs 0.11%/yr for VMFXX.

Performance

SNSXX vs. VMFXX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Schwab U.S. Treasury Money Fund (SNSXX) and Vanguard Federal Money Market Fund (VMFXX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SNSXX achieves a 1.40% return, which is significantly lower than VMFXX's 1.50% return.

SNSXX

• 1D: 0.00%
• 1M: 0.29%
• YTD: 1.40%
• 6M: 1.72%
• 1Y: 3.69%
• 3Y*: 2.32%
• 5Y*: 1.38%
• 10Y*: —

VMFXX

• 1D: 0.00%
• 1M: 0.30%
• YTD: 1.50%
• 6M: 1.82%
• 1Y: 3.95%
• 3Y*: 4.42%
• 5Y*: 3.02%
• 10Y*: —

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

SNSXX vs. VMFXX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SNSXX Schwab U.S. Treasury Money Fund	1.40%	3.97%	1.61%	0.00%	0.00%	0.00%
VMFXX Vanguard Federal Money Market Fund	1.50%	4.24%	4.83%	4.64%	0.00%	0.00%

Correlation

The correlation between SNSXX and VMFXX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	1.00
Correlation (3Y) Calculated over the trailing 3-year period	0.68
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (All Time) Calculated using the full available price history since May 25, 2021	0.65

Over the past year, SNSXX and VMFXX have become more correlated (1.00) than their long-term average of 0.65, meaning their price movements have been converging.

Return for Risk

SNSXX vs. VMFXX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Schwab U.S. Treasury Money Fund (SNSXX) and Vanguard Federal Money Market Fund (VMFXX). 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.

	SNSXX	VMFXX	Difference
Sharpe ratio: Return per unit of total volatility	3.71	3.67	+0.03
Sortino ratio: Return per unit of downside risk	—	—	—
Omega ratio: Gain probability vs. loss probability	—	—	—
Calmar ratio: Return relative to maximum drawdown	—	—	—
Martin ratio: Return relative to average drawdown	—	—	—

SNSXX vs. VMFXX - Sharpe Ratio Comparison

The current SNSXX Sharpe Ratio is 3.71, which is comparable to the VMFXX Sharpe Ratio of 3.67. The chart below compares the historical Sharpe Ratios of SNSXX and VMFXX, 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

SNSXX vs. VMFXX - Drawdown Comparison

The maximum SNSXX drawdown since its inception was 0.00%, which is greater than VMFXX's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for SNSXX and VMFXX.

Drawdown Indicators

	SNSXX	VMFXX	Difference
Max Drawdown Largest peak-to-trough decline	0.00%	0.00%	0.00%
Max Drawdown (1Y) Largest decline over 1 year	0.00%	0.00%	0.00%
Max Drawdown (3Y) Largest decline over 3 years	0.00%	0.00%	0.00%
Max Drawdown (5Y) Largest decline over 5 years	0.00%	0.00%	0.00%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	0.00%	0.00%	0.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.00%	0.00%	0.00%

Volatility

SNSXX vs. VMFXX - Volatility Comparison

Schwab U.S. Treasury Money Fund (SNSXX) and Vanguard Federal Money Market Fund (VMFXX) have volatilities of 0.29% and 0.30%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SNSXX	VMFXX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.29%	0.30%	-0.01%
Volatility (6M) Calculated over the trailing 6-month period	0.68%	0.72%	-0.04%
Volatility (1Y) Calculated over the trailing 1-year period	1.06%	1.12%	-0.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.68%	1.08%	-0.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.68%	1.07%	-0.39%

SNSXX vs. VMFXX - Expense Ratio Comparison

SNSXX has a 0.34% expense ratio, which is higher than VMFXX's 0.11% expense ratio.

Dividends

SNSXX vs. VMFXX - Dividend Comparison

SNSXX's dividend yield for the trailing twelve months is around 3.62%, less than VMFXX's 3.87% yield.

Position	TTM	2025	2024	2023
SNSXX Schwab U.S. Treasury Money Fund	3.62%	3.88%	1.59%	0.00%
VMFXX Vanguard Federal Money Market Fund	3.87%	4.14%	4.70%	4.53%

Frequently Asked Questions

Can I hold both SNSXX and VMFXX in my portfolio?

With a correlation of 1.00, SNSXX and VMFXX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, SNSXX or VMFXX?

VMFXX has higher volatility (0.30%) compared to SNSXX (0.29%). In terms of maximum drawdown, SNSXX dropped 0.00% vs VMFXX's 0.00%.

Which has better risk-adjusted returns?

SNSXX currently has the higher Sharpe Ratio (3.71 vs 3.67), 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.