QUBT vs. RGTI

Last updated Jun 4, 2026

QUBT (Quantum Computing, Inc.) and RGTI (Rigetti Computing Inc) are both stocks. Both operate in the Computer Hardware industry within the Technology sector. Over the past 5 years, QUBT returned 14.83%/yr vs 19.57%/yr for RGTI. A 0.53 correlation means they provide meaningful diversification when combined.

Performance

QUBT vs. RGTI - Performance Comparison

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

Returns By Period

The year-to-date returns for both stocks are quite close, with QUBT having a 9.16% return and RGTI slightly lower at 8.78%.

QUBT

• 1D: -8.57%
• 1M: 17.89%
• YTD: 9.16%
• 6M: -7.21%
• 1Y: -9.68%
• 3Y*: 109.96%
• 5Y*: 14.83%
• 10Y*: —

RGTI

• 1D: -10.36%
• 1M: 36.13%
• YTD: 8.78%
• 6M: -7.47%
• 1Y: 100.12%
• 3Y*: 201.63%
• 5Y*: 19.57%
• 10Y*: —

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

QUBT vs. RGTI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
QUBT Quantum Computing, Inc.	9.16%	-38.01%	1,712.51%	-39.53%	-55.72%	-46.76%
RGTI Rigetti Computing Inc	8.78%	45.15%	1,449.40%	35.07%	-92.91%	3.94%

Correlation

The correlation between QUBT and RGTI is 0.83, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.83
Correlation (3Y) Calculated over the trailing 3-year period	0.66
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (All Time) Calculated using the full available price history since Apr 23, 2021	0.53

Over the past year, QUBT and RGTI have become more correlated (0.83) than their long-term average of 0.53, meaning their price movements have been converging.

Fundamentals

Market Cap QUBT : $2.51B RGTI : $8.08B
EPS QUBT : -$0.21 RGTI : -$0.71
PS Ratio QUBT : 483.43 RGTI : 762.88
PB Ratio QUBT : 1.57 RGTI : 13.85
Total Revenue (TTM) QUBT : $4.33M RGTI : $10.02M
Gross Profit (TTM) QUBT : -$667.00K RGTI : $3.00M
EBITDA (TTM) QUBT : -$52.52M RGTI : -$263.06M

Return for Risk

QUBT vs. RGTI — Risk / Return Rank

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

QUBT

QUBT Risk / Return Rank: 40
QUBT Sharpe Ratio Rank: 37
QUBT Sortino Ratio Rank: 46
QUBT Omega Ratio Rank: 43
QUBT Calmar Ratio Rank: 36
QUBT Martin Ratio Rank: 36

RGTI

RGTI Risk / Return Rank: 68
RGTI Sharpe Ratio Rank: 69
RGTI Sortino Ratio Rank: 75
RGTI Omega Ratio Rank: 69
RGTI Calmar Ratio Rank: 65
RGTI Martin Ratio Rank: 60

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. RGTI - Risk-Adjusted Trends Comparison

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

	QUBT	RGTI	Difference
Sharpe ratio Return per unit of total volatility	-0.09	0.93	-1.02
Sortino ratio Return per unit of downside risk	0.71	2.05	-1.34
Omega ratio Gain probability vs. loss probability	1.07	1.22	-0.15
Calmar ratio Return relative to maximum drawdown	-0.13	1.31	-1.44
Martin ratio Return relative to average drawdown	-0.20	2.05	-2.26
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. RGTI - Sharpe Ratio Comparison

The current QUBT Sharpe Ratio is -0.09, which is lower than the RGTI Sharpe Ratio of 0.93. The chart below compares the historical Sharpe Ratios of QUBT 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

	QUBT	RGTI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.09	0.93	-1.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.11	0.15	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.06	0.15	-0.09

Drawdowns

QUBT vs. RGTI - Drawdown Comparison

The maximum QUBT drawdown since its inception was -97.53%, roughly equal to the maximum RGTI drawdown of -96.89%. Use the drawdown chart below to compare losses from any high point for QUBT and RGTI.

Drawdown Indicators

	QUBT	RGTI	Difference
Max Drawdown Largest peak-to-trough decline	-97.53%	-96.89%	-0.64%
Max Drawdown (1Y) Largest decline over 1 year	-74.37%	-77.10%	+2.73%
Max Drawdown (3Y) Largest decline over 3 years	-82.40%	-78.83%	-3.57%
Max Drawdown (5Y) Largest decline over 5 years	-95.63%	-96.89%	+1.26%
Current Drawdown Current decline from peak	-56.39%	-57.23%	+0.84%
Average Drawdown Average peak-to-trough decline	-72.99%	-58.86%	-14.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	47.68%	48.91%	-1.23%

Volatility

QUBT vs. RGTI - Volatility Comparison

The current volatility for Quantum Computing, Inc. (QUBT) is 36.08%, while Rigetti Computing Inc (RGTI) has a volatility of 43.33%. This indicates that QUBT 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

	QUBT	RGTI	Difference
Volatility (1M) Calculated over the trailing 1-month period	36.08%	43.33%	-7.25%
Volatility (6M) Calculated over the trailing 6-month period	67.55%	71.05%	-3.50%
Volatility (1Y) Calculated over the trailing 1-year period	107.57%	108.42%	-0.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	133.11%	128.73%	+4.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	177.77%	127.27%	+50.50%

Dividends

QUBT vs. RGTI - Dividend Comparison

Neither QUBT nor RGTI has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both QUBT and RGTI in my portfolio?

QUBT and RGTI have a correlation of 0.83, 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 RGTI?

RGTI has higher volatility (43.33%) compared to QUBT (36.08%). In terms of maximum drawdown, QUBT dropped -97.53% vs RGTI's -96.89%.

Which has better risk-adjusted returns?

RGTI currently has the higher Sharpe Ratio (0.93 vs -0.09), 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.