ARQQ vs. RGTI

Last updated Jun 3, 2026

ARQQ (Arqit Quantum Inc.) and RGTI (Rigetti Computing Inc) are both stocks. Both are in the Technology sector — ARQQ in Software - Infrastructure, RGTI in Computer Hardware. Over the past 3 years, ARQQ returned -19.77%/yr vs 212.83%/yr for RGTI. At a 0.44 correlation, their price movements are largely independent.

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.

Returns By Period

In the year-to-date period, ARQQ achieves a -25.64% return, which is significantly lower than RGTI's 21.35% return.

ARQQ

• 1D: -4.07%
• 1M: 12.05%
• YTD: -25.64%
• 6M: -41.01%
• 1Y: -27.53%
• 3Y*: -19.77%
• 5Y*: —
• 10Y*: —

RGTI

• 1D: 4.88%
• 1M: 53.60%
• YTD: 21.35%
• 6M: 12.56%
• 1Y: 119.25%
• 3Y*: 212.83%
• 5Y*: 22.34%
• 10Y*: —

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

ARQQ vs. RGTI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ARQQ Arqit Quantum Inc.	-25.64%	-43.67%	227.76%	-86.87%	-84.93%	111.95%
RGTI Rigetti Computing Inc	21.35%	45.15%	1,449.40%	35.07%	-92.91%	5.76%

Correlation

The correlation between ARQQ and RGTI is 0.70, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.70
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (All Time) Calculated using the full available price history since Sep 8, 2021	0.44

Over the past year, ARQQ and RGTI have become more correlated (0.70) than their long-term average of 0.44, meaning their price movements have been converging.

Fundamentals

Market Cap ARQQ : $269.77M RGTI : $9.02B
EPS ARQQ : -$4.72 RGTI : -$0.71
PS Ratio ARQQ : 181.57 RGTI : 851.06
PB Ratio ARQQ : 9.46 RGTI : 15.45
Total Revenue (TTM) ARQQ : $1.43M RGTI : $10.02M
Gross Profit (TTM) ARQQ : -$307.00K RGTI : $3.00M
EBITDA (TTM) ARQQ : -$68.30M RGTI : -$263.06M

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: 33
ARQQ Sharpe Ratio Rank: 29
ARQQ Sortino Ratio Rank: 37
ARQQ Omega Ratio Rank: 36
ARQQ Calmar Ratio Rank: 30
ARQQ Martin Ratio Rank: 32

RGTI

RGTI Risk / Return Rank: 71
RGTI Sharpe Ratio Rank: 74
RGTI Sortino Ratio Rank: 78
RGTI Omega Ratio Rank: 71
RGTI Calmar Ratio Rank: 69
RGTI Martin Ratio Rank: 63

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	-0.26	1.11	-1.37
Sortino ratio Return per unit of downside risk	0.33	2.22	-1.89
Omega ratio Gain probability vs. loss probability	1.04	1.24	-0.20
Calmar ratio Return relative to maximum drawdown	-0.31	1.58	-1.89
Martin ratio Return relative to average drawdown	-0.47	2.50	-2.97
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 -0.26, which is lower than the RGTI Sharpe Ratio of 1.11. The chart below compares the historical Sharpe Ratios of ARQQ and RGTI, 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

	ARQQ	RGTI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.26	1.11	-1.37
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.17	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.34	0.17	-0.51

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%
Max Drawdown (3Y) Largest decline over 3 years	-90.47%	-78.83%	-11.64%
Max Drawdown (5Y) Largest decline over 5 years	—	-96.89%	—
Current Drawdown Current decline from peak	-98.29%	-52.29%	-46.00%
Average Drawdown Average peak-to-trough decline	-88.79%	-58.86%	-29.93%
Ulcer Index Depth and duration of drawdowns from previous peaks	52.00%	48.78%	+3.22%

Volatility

ARQQ vs. RGTI - Volatility Comparison

The current volatility for Arqit Quantum Inc. (ARQQ) is 29.87%, while Rigetti Computing Inc (RGTI) has a volatility of 41.33%. This indicates that ARQQ experiences smaller price fluctuations and is considered to be less risky 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	29.87%	41.33%	-11.46%
Volatility (6M) Calculated over the trailing 6-month period	62.59%	70.73%	-8.14%
Volatility (1Y) Calculated over the trailing 1-year period	105.28%	107.88%	-2.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	133.92%	128.64%	+5.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	133.92%	127.23%	+6.69%

Dividends

ARQQ vs. RGTI - Dividend Comparison

Neither ARQQ nor RGTI has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ARQQ and RGTI in my portfolio?

ARQQ and RGTI have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ARQQ or RGTI?

RGTI has higher volatility (41.33%) compared to ARQQ (29.87%). In terms of maximum drawdown, ARQQ dropped -99.60% vs RGTI's -96.89%.

Which has better risk-adjusted returns?

RGTI currently has the higher Sharpe Ratio (1.11 vs -0.26), 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.