QUBT vs. SPAXX

Last updated Jun 9, 2026

QUBT (Quantum Computing, Inc.) is a stock, while SPAXX (Fidelity Government Money Market Fund) is Money Market fund actively managed by Fidelity. Over the past 5 years, QUBT returned 9.20%/yr vs 1.45%/yr for SPAXX. At a correlation of -0.01, they often move in opposite directions.

Performance

QUBT vs. SPAXX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Quantum Computing, Inc. (QUBT) 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, QUBT achieves a 1.85% return, which is significantly higher than SPAXX's 1.37% return.

QUBT

• 1D: 4.97%
• 1M: 8.85%
• YTD: 1.85%
• 6M: -19.68%
• 1Y: -23.72%
• 3Y*: 90.15%
• 5Y*: 9.20%
• 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)

QUBT vs. SPAXX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
QUBT Quantum Computing, Inc.	1.85%	-38.01%	1,712.51%	-39.53%	-55.72%	-45.87%
SPAXX Fidelity Government Money Market Fund	1.37%	3.96%	1.54%	0.41%	0.00%	0.00%

Correlation

The correlation between QUBT and SPAXX 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 (3Y) Calculated over the trailing 3-year period	-0.01
Correlation (5Y) Calculated over the trailing 5-year period	-0.01
Correlation (All Time) Calculated using the full available price history since May 25, 2021	-0.01

Return for Risk

QUBT vs. SPAXX — Risk / Return Rank

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

QUBT

QUBT Risk / Return Rank: 36
QUBT Sharpe Ratio Rank: 33
QUBT Sortino Ratio Rank: 41
QUBT Omega Ratio Rank: 39
QUBT Calmar Ratio Rank: 32
QUBT Martin Ratio Rank: 33

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.

QUBT vs. SPAXX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Quantum Computing, Inc. (QUBT) 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.

	QUBT	SPAXX	Difference
Sharpe ratio: Return per unit of total volatility	-0.22	3.65	-3.87
Sortino ratio: Return per unit of downside risk	0.43	—	—
Omega ratio: Gain probability vs. loss probability	1.04	—	—
Calmar ratio: Return relative to maximum drawdown	-0.32	—	—
Martin ratio: Return relative to average drawdown	-0.49	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

QUBT vs. SPAXX - Sharpe Ratio Comparison

The current QUBT Sharpe Ratio is -0.22, which is lower than the SPAXX Sharpe Ratio of 3.65. The chart below compares the historical Sharpe Ratios of QUBT 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.

Sharpe Ratios by Period

	QUBT	SPAXX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.22	3.65	-3.87
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.07	2.13	-2.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.06	2.12	-2.07

Drawdowns

QUBT vs. SPAXX - Drawdown Comparison

The maximum QUBT drawdown since its inception was -97.53%, which is greater than SPAXX's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for QUBT and SPAXX.

Drawdown Indicators

	QUBT	SPAXX	Difference
Max Drawdown Largest peak-to-trough decline	-97.53%	0.00%	-97.53%
Max Drawdown (1Y) Largest decline over 1 year	-74.37%	0.00%	-74.37%
Max Drawdown (3Y) Largest decline over 3 years	-82.40%	0.00%	-82.40%
Max Drawdown (5Y) Largest decline over 5 years	-95.63%	0.00%	-95.63%
Current Drawdown Current decline from peak	-59.31%	0.00%	-59.31%
Average Drawdown Average peak-to-trough decline	-72.96%	0.00%	-72.96%
Ulcer Index Depth and duration of drawdowns from previous peaks	48.08%	0.00%	+48.08%

Volatility

QUBT vs. SPAXX - Volatility Comparison

Quantum Computing, Inc. (QUBT) has a higher volatility of 36.37% compared to Fidelity Government Money Market Fund (SPAXX) at 0.28%. This indicates that QUBT'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

	QUBT	SPAXX	Difference
Volatility (1M) Calculated over the trailing 1-month period	36.37%	0.28%	+36.09%
Volatility (6M) Calculated over the trailing 6-month period	67.03%	0.72%	+66.31%
Volatility (1Y) Calculated over the trailing 1-year period	106.87%	1.03%	+105.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	133.10%	0.69%	+132.41%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	177.68%	0.69%	+176.99%

Dividends

QUBT vs. SPAXX - Dividend Comparison

QUBT has not paid dividends to shareholders, while SPAXX's dividend yield for the trailing twelve months is around 3.59%.

Position	TTM	2025	2024	2023
QUBT Quantum Computing, Inc.	0.00%	0.00%	0.00%	0.00%
SPAXX Fidelity Government Money Market Fund	3.59%	3.88%	1.53%	0.41%

Frequently Asked Questions

Can I hold both QUBT and SPAXX in my portfolio?

QUBT and SPAXX 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, QUBT or SPAXX?

QUBT has higher volatility (36.37%) compared to SPAXX (0.28%). In terms of maximum drawdown, QUBT dropped -97.53% vs SPAXX's 0.00%.

Which has better risk-adjusted returns?

SPAXX currently has the higher Sharpe Ratio (3.65 vs -0.22), 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.