ARQQ vs. RGTI

Last updated Apr 2, 2026

Compare and contrast key facts about Arqit Quantum Inc. (ARQQ) and Rigetti Computing Inc (RGTI).

Performance

ARQQ vs. RGTI - Performance Comparison

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

ARQQ vs. RGTI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ARQQ Arqit Quantum Inc.	-37.89%	-43.67%	227.76%	-86.87%	-84.93%	111.95%
RGTI Rigetti Computing Inc	-39.05%	45.15%	1,449.40%	35.07%	-92.91%	5.76%

Fundamentals

Market Cap ARQQ : $207.82M RGTI : $4.18B
EPS ARQQ : -$5.88 RGTI : -$0.70
PS Ratio ARQQ : 224.91 RGTI : 592.37
PB Ratio ARQQ : 7.63 RGTI : 7.66
Total Revenue (TTM) ARQQ : $924.00K RGTI : $7.09M
Gross Profit (TTM) ARQQ : -$1.28M RGTI : $2.06M
EBITDA (TTM) ARQQ : -$57.09M RGTI : -$255.56M

Returns By Period

The year-to-date returns for both stocks are quite close, with ARQQ having a -37.89% return and RGTI slightly lower at -39.05%.

ARQQ

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

RGTI

• 1D: -3.85%
• 1M: -23.69%
• YTD: -39.05%
• 6M: -54.77%
• 1Y: 72.86%
• 3Y*: 165.25%
• 5Y*: —
• 10Y*: —

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

Return for Risk

ARQQ vs. RGTI — Risk / Return Rank

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

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

RGTI

RGTI Risk / Return Rank: 64
RGTI Sharpe Ratio Rank: 64
RGTI Sortino Ratio Rank: 74
RGTI Omega Ratio Rank: 65
RGTI Calmar Ratio Rank: 61
RGTI Martin Ratio Rank: 58

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.

ARQQ vs. RGTI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Arqit Quantum Inc. (ARQQ) and Rigetti Computing Inc (RGTI). 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.

	ARQQ	RGTI	Difference
Sharpe ratio Return per unit of total volatility	0.01	0.67	-0.66
Sortino ratio Return per unit of downside risk	0.88	1.80	-0.92
Omega ratio Gain probability vs. loss probability	1.10	1.19	-0.10
Calmar ratio Return relative to maximum drawdown	-0.02	0.91	-0.94
Martin ratio Return relative to average drawdown	-0.05	1.73	-1.77
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ARQQ vs. RGTI - Sharpe Ratio Comparison

The current ARQQ Sharpe Ratio is 0.01, which is lower than the RGTI Sharpe Ratio of 0.67. The chart below compares the historical Sharpe Ratios of ARQQ and RGTI, 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

	ARQQ	RGTI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.01	0.67	-0.66
Sharpe Ratio (All Time) Calculated using the full available price history	-0.36	0.05	-0.41

Correlation

The correlation between ARQQ and RGTI is 0.43, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

ARQQ vs. RGTI - Dividend Comparison

Neither ARQQ nor RGTI has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

ARQQ vs. RGTI - Drawdown Comparison

The maximum ARQQ drawdown since its inception was -99.60%, roughly equal to the maximum RGTI drawdown of -96.89%. Use the drawdown chart below to compare losses from any high point for ARQQ and RGTI.

Drawdown Indicators

	ARQQ	RGTI	Difference
Max Drawdown Largest peak-to-trough decline	-99.60%	-96.89%	-2.71%
Max Drawdown (1Y) Largest decline over 1 year	-79.78%	-77.10%	-2.68%
Current Drawdown Current decline from peak	-98.57%	-76.04%	-22.53%
Average Drawdown Average peak-to-trough decline	-88.43%	-58.60%	-29.83%
Ulcer Index Depth and duration of drawdowns from previous peaks	42.19%	40.84%	+1.35%

Volatility

ARQQ vs. RGTI - Volatility Comparison

Arqit Quantum Inc. (ARQQ) has a higher volatility of 20.71% compared to Rigetti Computing Inc (RGTI) at 18.75%. This indicates that ARQQ's price experiences larger fluctuations and is considered to be riskier than RGTI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ARQQ	RGTI	Difference
Volatility (1M) Calculated over the trailing 1-month period	20.71%	18.75%	+1.96%
Volatility (6M) Calculated over the trailing 6-month period	73.91%	74.25%	-0.34%
Volatility (1Y) Calculated over the trailing 1-year period	109.05%	109.71%	-0.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	134.98%	127.34%	+7.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	134.98%	127.34%	+7.64%

Financials