MAXI vs. SPAXX

Last updated Jun 21, 2026

MAXI (Simplify Bitcoin Strategy PLUS Income ETF) and SPAXX (Fidelity Government Money Market Fund) are both funds - MAXI is a Cryptocurrency fund actively managed by Simplify, while SPAXX is a Money Market fund actively managed by Fidelity. Both are actively managed. Over the past 3 years, MAXI returned 10.98%/yr vs 2.42%/yr for SPAXX. At a correlation of -0.05, they often move in opposite directions. MAXI charges 1.31%/yr vs 0.42%/yr for SPAXX.

Performance

MAXI vs. SPAXX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Simplify Bitcoin Strategy PLUS Income ETF (MAXI) and Fidelity Government Money Market Fund (SPAXX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MAXI achieves a -35.86% return, which is significantly lower than SPAXX's 1.37% return.

MAXI

• 1D: -1.94%
• 1M: -19.20%
• YTD: -35.86%
• 6M: -37.09%
• 1Y: -57.63%
• 3Y*: 10.98%
• 5Y*: —
• 10Y*: —

SPAXX

• 1D: 0.00%
• 1M: 0.28%
• YTD: 1.37%
• 6M: 1.67%
• 1Y: 3.66%
• 3Y*: 2.42%
• 5Y*: 1.45%
• 10Y*: —

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

MAXI vs. SPAXX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
MAXI Simplify Bitcoin Strategy PLUS Income ETF	-35.86%	-28.59%	92.92%	144.12%	-13.34%
SPAXX Fidelity Government Money Market Fund	1.37%	3.96%	1.54%	0.41%	0.00%

Correlation

The correlation between MAXI and SPAXX is 0.00, 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	0.00
Correlation (3Y) Calculated over the trailing 3-year period	-0.05
Correlation (All Time) Calculated using the full available price history since Sep 30, 2022	-0.05

Return for Risk

MAXI vs. SPAXX — Risk / Return Rank

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

MAXI

MAXI Risk / Return Rank: 2
MAXI Sharpe Ratio Rank: 2
MAXI Sortino Ratio Rank: 2
MAXI Omega Ratio Rank: 2
MAXI Calmar Ratio Rank: 2
MAXI Martin Ratio Rank: 2

SPAXX

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.

MAXI vs. SPAXX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Simplify Bitcoin Strategy PLUS Income ETF (MAXI) and Fidelity Government Money Market Fund (SPAXX). 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.

	MAXI	SPAXX	Difference
Sharpe ratio: Return per unit of total volatility	-0.90	3.65	-4.54
Sortino ratio: Return per unit of downside risk	-1.37	—	—
Omega ratio: Gain probability vs. loss probability	0.85	—	—
Calmar ratio: Return relative to maximum drawdown	-0.85	—	—
Martin ratio: Return relative to average drawdown	-1.30	—	—

MAXI vs. SPAXX - Sharpe Ratio Comparison

The current MAXI Sharpe Ratio is -0.90, which is lower than the SPAXX Sharpe Ratio of 3.65. The chart below compares the historical Sharpe Ratios of MAXI and SPAXX, 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

MAXI vs. SPAXX - Drawdown Comparison

The maximum MAXI drawdown since its inception was -68.91%, which is greater than SPAXX's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for MAXI and SPAXX.

Drawdown Indicators

	MAXI	SPAXX	Difference
Max Drawdown Largest peak-to-trough decline	-68.91%	0.00%	-68.91%
Max Drawdown (1Y) Largest decline over 1 year	-68.91%	0.00%	-68.91%
Max Drawdown (3Y) Largest decline over 3 years	-68.91%	0.00%	-68.91%
Max Drawdown (5Y) Largest decline over 5 years	—	0.00%	—
Current Drawdown Current decline from peak	-67.49%	0.00%	-67.49%
Average Drawdown Average peak-to-trough decline	-19.30%	0.00%	-19.30%
Ulcer Index Depth and duration of drawdowns from previous peaks	44.94%	0.00%	+44.94%

Volatility

MAXI vs. SPAXX - Volatility Comparison

Simplify Bitcoin Strategy PLUS Income ETF (MAXI) has a higher volatility of 12.91% compared to Fidelity Government Money Market Fund (SPAXX) at 0.28%. This indicates that MAXI's price experiences larger fluctuations and is considered to be riskier than SPAXX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MAXI	SPAXX	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.91%	0.28%	+12.63%
Volatility (6M) Calculated over the trailing 6-month period	44.45%	0.66%	+43.79%
Volatility (1Y) Calculated over the trailing 1-year period	65.18%	1.03%	+64.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	63.64%	0.69%	+62.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	63.64%	0.69%	+62.95%

MAXI vs. SPAXX - Expense Ratio Comparison

MAXI has a 1.31% expense ratio, which is higher than SPAXX's 0.42% expense ratio.

Dividends

MAXI vs. SPAXX - Dividend Comparison

MAXI's dividend yield for the trailing twelve months is around 68.81%, more than SPAXX's 3.59% yield.

Position	TTM	2025	2024	2023	2022
MAXI Simplify Bitcoin Strategy PLUS Income ETF	68.81%	49.00%	32.06%	29.63%	4.43%
SPAXX Fidelity Government Money Market Fund	3.59%	3.88%	1.53%	0.41%	0.00%

Frequently Asked Questions

Can I hold both MAXI and SPAXX in my portfolio?

MAXI and SPAXX have a correlation of 0.00, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MAXI or SPAXX?

MAXI has higher volatility (12.91%) compared to SPAXX (0.28%). In terms of maximum drawdown, MAXI dropped -68.91% vs SPAXX's 0.00%.

Which has better risk-adjusted returns?

SPAXX currently has the higher Sharpe Ratio (3.65 vs -0.90), 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.