QUBT vs. ARQQ

Last updated Apr 2, 2026

Compare and contrast key facts about Quantum Computing, Inc. (QUBT) and Arqit Quantum Inc. (ARQQ).

Performance

QUBT vs. ARQQ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Quantum Computing, Inc. (QUBT) and Arqit Quantum Inc. (ARQQ). The values are adjusted to include any dividend payments, if applicable.

QUBT vs. ARQQ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
QUBT Quantum Computing, Inc.	-35.28%	-38.01%	1,712.51%	-39.53%	-55.72%	-50.29%
ARQQ Arqit Quantum Inc.	-37.89%	-43.67%	227.76%	-86.87%	-84.93%	111.95%

Fundamentals

Market Cap QUBT : $1.43B ARQQ : $207.82M
EPS QUBT : -$0.11 ARQQ : -$5.88
PS Ratio QUBT : 1.70K ARQQ : 224.91
PB Ratio QUBT : 0.90 ARQQ : 7.63
Total Revenue (TTM) QUBT : $682.00K ARQQ : $924.00K
Gross Profit (TTM) QUBT : $67.00K ARQQ : -$1.28M
EBITDA (TTM) QUBT : -$36.20M ARQQ : -$57.09M

Returns By Period

In the year-to-date period, QUBT achieves a -35.28% return, which is significantly higher than ARQQ's -37.89% return.

QUBT

• 1D: -3.07%
• 1M: -22.70%
• YTD: -35.28%
• 6M: -65.00%
• 1Y: -14.43%
• 3Y*: 71.78%
• 5Y*: -1.93%
• 10Y*: —

ARQQ

• 1D: 2.57%
• 1M: -19.40%
• YTD: -37.89%
• 6M: -67.01%
• 1Y: 1.27%
• 3Y*: -27.05%
• 5Y*: —
• 10Y*: —

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

Return for Risk

QUBT vs. ARQQ — Risk / Return Rank

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

QUBT

QUBT Risk / Return Rank: 38
QUBT Sharpe Ratio Rank: 34
QUBT Sortino Ratio Rank: 47
QUBT Omega Ratio Rank: 42
QUBT Calmar Ratio Rank: 34
QUBT Martin Ratio Rank: 34

ARQQ

ARQQ Risk / Return Rank: 43
ARQQ Sharpe Ratio Rank: 40
ARQQ Sortino Ratio Rank: 51
ARQQ Omega Ratio Rank: 47
ARQQ Calmar Ratio Rank: 40
ARQQ Martin Ratio Rank: 39

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. ARQQ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Quantum Computing, Inc. (QUBT) and Arqit Quantum Inc. (ARQQ). 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	ARQQ	Difference
Sharpe ratio Return per unit of total volatility	-0.13	0.01	-0.14
Sortino ratio Return per unit of downside risk	0.70	0.88	-0.18
Omega ratio Gain probability vs. loss probability	1.07	1.10	-0.02
Calmar ratio Return relative to maximum drawdown	-0.23	-0.02	-0.20
Martin ratio Return relative to average drawdown	-0.42	-0.05	-0.37
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. ARQQ - Sharpe Ratio Comparison

The current QUBT Sharpe Ratio is -0.13, which is lower than the ARQQ Sharpe Ratio of 0.01. The chart below compares the historical Sharpe Ratios of QUBT and ARQQ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	QUBT	ARQQ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.13	0.01	-0.14
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.01	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.02	-0.36	+0.38

Correlation

The correlation between QUBT and ARQQ is 0.37, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

QUBT vs. ARQQ - Dividend Comparison

Neither QUBT nor ARQQ has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

QUBT vs. ARQQ - Drawdown Comparison

The maximum QUBT drawdown since its inception was -97.53%, roughly equal to the maximum ARQQ drawdown of -99.60%. Use the drawdown chart below to compare losses from any high point for QUBT and ARQQ.

Drawdown Indicators

	QUBT	ARQQ	Difference
Max Drawdown Largest peak-to-trough decline	-97.53%	-99.60%	+2.07%
Max Drawdown (1Y) Largest decline over 1 year	-74.37%	-79.78%	+5.41%
Max Drawdown (5Y) Largest decline over 5 years	-95.63%	—	—
Current Drawdown Current decline from peak	-74.14%	-98.57%	+24.43%
Average Drawdown Average peak-to-trough decline	-73.24%	-88.43%	+15.19%
Ulcer Index Depth and duration of drawdowns from previous peaks	40.75%	42.19%	-1.44%

Volatility

QUBT vs. ARQQ - Volatility Comparison

The current volatility for Quantum Computing, Inc. (QUBT) is 17.25%, while Arqit Quantum Inc. (ARQQ) has a volatility of 20.71%. This indicates that QUBT experiences smaller price fluctuations and is considered to be less risky than ARQQ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	QUBT	ARQQ	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.25%	20.71%	-3.46%
Volatility (6M) Calculated over the trailing 6-month period	70.90%	73.91%	-3.01%
Volatility (1Y) Calculated over the trailing 1-year period	114.38%	109.05%	+5.33%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	134.20%	134.98%	-0.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	179.10%	134.98%	+44.12%

Financials