RRGB vs. RPID

Last updated Jun 5, 2026

RRGB (Red Robin Gourmet Burgers, Inc.) and RPID (Rapid Micro Biosystems Inc) are both stocks. RRGB operates in Restaurants (Consumer Cyclical), while RPID operates in Medical Devices (Healthcare). Over the past 3 years, RRGB returned -28.95%/yr vs 24.55%/yr for RPID. At a 0.20 correlation, their price movements are largely independent.

Performance

RRGB vs. RPID - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Red Robin Gourmet Burgers, Inc. (RRGB) and Rapid Micro Biosystems Inc (RPID). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RRGB achieves a 9.38% return, which is significantly higher than RPID's -31.38% return.

RRGB

• 1D: 0.45%
• 1M: 25.50%
• YTD: 9.38%
• 6M: 8.58%
• 1Y: -31.85%
• 3Y*: -28.95%
• 5Y*: -32.42%
• 10Y*: -22.21%

RPID

• 1D: 1.53%
• 1M: -19.76%
• YTD: -31.38%
• 6M: -50.62%
• 1Y: -44.26%
• 3Y*: 24.55%
• 5Y*: —
• 10Y*: —

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

RRGB vs. RPID - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
RRGB Red Robin Gourmet Burgers, Inc.	9.38%	-26.23%	-55.97%	123.48%	-66.24%	-41.28%
RPID Rapid Micro Biosystems Inc	-31.38%	222.22%	21.62%	-34.51%	-89.38%	-50.28%

Correlation

The correlation between RRGB and RPID is 0.09, 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	0.09
Correlation (3Y) Calculated over the trailing 3-year period	0.12
Correlation (All Time) Calculated using the full available price history since Jul 16, 2021	0.20

The correlation between RRGB and RPID shifts across timeframes, from 0.09 (1 year) to 0.20 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS RRGB : -$1.27 RPID : -$1.12
PS Ratio RRGB : 0.07 RPID : 2.59
Total Revenue (TTM) RRGB : $1.21B RPID : $34.38M
Gross Profit (TTM) RRGB : $323.96M RPID : $5.80M
EBITDA (TTM) RRGB : $54.04M RPID : -$47.18M

Return for Risk

RRGB vs. RPID — Risk / Return Rank

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

RRGB

RRGB Risk / Return Rank: 24
RRGB Sharpe Ratio Rank: 23
RRGB Sortino Ratio Rank: 24
RRGB Omega Ratio Rank: 25
RRGB Calmar Ratio Rank: 25
RRGB Martin Ratio Rank: 25

RPID

RPID Risk / Return Rank: 17
RPID Sharpe Ratio Rank: 19
RPID Sortino Ratio Rank: 23
RPID Omega Ratio Rank: 24
RPID Calmar Ratio Rank: 13
RPID Martin Ratio Rank: 8

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.

RRGB vs. RPID - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Red Robin Gourmet Burgers, Inc. (RRGB) and Rapid Micro Biosystems Inc (RPID). 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.

	RRGB	RPID	Difference
Sharpe ratio: Return per unit of total volatility	-0.44	-0.51	+0.08
Sortino ratio: Return per unit of downside risk	-0.29	-0.35	+0.05
Omega ratio: Gain probability vs. loss probability	0.97	0.96	+0.01
Calmar ratio: Return relative to maximum drawdown	-0.49	-0.76	+0.27
Martin ratio: Return relative to average drawdown	-0.85	-1.40	+0.55
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RRGB vs. RPID - Sharpe Ratio Comparison

The current RRGB Sharpe Ratio is -0.44, which is comparable to the RPID Sharpe Ratio of -0.51. The chart below compares the historical Sharpe Ratios of RRGB and RPID, 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

	RRGB	RPID	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.44	-0.51	+0.08
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.43	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.30	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.07	-0.44	+0.37

Drawdowns

RRGB vs. RPID - Drawdown Comparison

The maximum RRGB drawdown since its inception was -97.24%, roughly equal to the maximum RPID drawdown of -97.57%. Use the drawdown chart below to compare losses from any high point for RRGB and RPID.

Drawdown Indicators

	RRGB	RPID	Difference
Max Drawdown Largest peak-to-trough decline	-97.24%	-97.57%	+0.33%
Max Drawdown (1Y) Largest decline over 1 year	-65.19%	-58.23%	-6.96%
Max Drawdown (3Y) Largest decline over 3 years	-83.59%	-58.23%	-25.36%
Max Drawdown (5Y) Largest decline over 5 years	-92.47%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-96.49%	—	—
Current Drawdown Current decline from peak	-95.23%	-91.98%	-3.25%
Average Drawdown Average peak-to-trough decline	-50.20%	-84.12%	+33.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	37.66%	31.63%	+6.03%

Volatility

RRGB vs. RPID - Volatility Comparison

Red Robin Gourmet Burgers, Inc. (RRGB) has a higher volatility of 24.93% compared to Rapid Micro Biosystems Inc (RPID) at 16.38%. This indicates that RRGB's price experiences larger fluctuations and is considered to be riskier than RPID based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RRGB	RPID	Difference
Volatility (1M) Calculated over the trailing 1-month period	24.93%	16.38%	+8.55%
Volatility (6M) Calculated over the trailing 6-month period	52.90%	63.65%	-10.75%
Volatility (1Y) Calculated over the trailing 1-year period	73.85%	86.70%	-12.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	75.59%	87.65%	-12.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	73.59%	87.65%	-14.06%

Dividends

RRGB vs. RPID - Dividend Comparison

Neither RRGB nor RPID has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both RRGB and RPID in my portfolio?

RRGB and RPID have a correlation of 0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RRGB or RPID?

RRGB has higher volatility (24.93%) compared to RPID (16.38%). In terms of maximum drawdown, RRGB dropped -97.24% vs RPID's -97.57%.

Which has better risk-adjusted returns?

RRGB currently has the higher Sharpe Ratio (-0.44 vs -0.51), 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.