RRGB vs AKTX

Comparison between Red Robin Gourmet Burgers Inc (RRGB, Company) and Akari Therapeutics Plc (AKTX, Company).

RRGB is from the Consumer Cyclical sector, while AKTX is from the Healthcare sector.

5-Year PerformanceRRGB has outperformed AKTX, delivering a return of -20.0% compared to -64.1%

RRGB vs AKTX - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	RRGB(COMPANY)	AKTX(COMPANY)
Market Cap	$149M	$148M
Max Drawdown	97.24%	99.99%
Sharpe Ratio	0.81	0.25
5Y Beta	0.84	0.50
Industry	Restaurants	Biotechnology
P/E Ratio	-5.51	-8.66
Forward P/E	18.69	N/A
PEG Ratio	1.36	0.00
5Y EPS CAGR	-26.90%	N/A
Debt to Equity	-160.47%	0.00%
Free Cash Flow Yield	16.37%	-6.52%
P/S Ratio	0.13	478368.50
P/B Ratio	48.90	1.14

Market Cap

Winner

RRGB

$149M

AKTX

$148M

Max Drawdown

Winner

RRGB

97.24%

AKTX

99.99%

Sharpe Ratio

Winner

RRGB

0.81

AKTX

0.25

5Y Beta

RRGB

0.84

Winner

AKTX

0.50

Industry

RRGB

Restaurants

AKTX

Biotechnology

P/E Ratio

RRGB

-5.51

Winner

AKTX

-8.66

Forward P/E

RRGB

18.69

AKTX

N/A

PEG Ratio

RRGB

1.36

Winner

AKTX

0.00

5Y EPS CAGR

RRGB

-26.90%

AKTX

N/A

Debt to Equity

Winner

RRGB

-160.47%

AKTX

0.00%

Free Cash Flow Yield

Winner

RRGB

16.37%

AKTX

-6.52%

P/S Ratio

Winner

RRGB

0.13

AKTX

478368.50

P/B Ratio

RRGB

48.90

Winner

AKTX

1.14

RRGB vs AKTX - Historical Returns

Returns include dividend reinvestment.

Period	RRGB	AKTX
1 month	+20.92%	-26.51%
3 months	+128.73%	+37.63%
6 months	+126.88%	-14.79%
1 year	+52.62%	-79.67%
5 years(CAGR)	-19.98%	-64.07%
10 years(CAGR)	-15.84%	-50.11%
Max(CAGR)	-1.53%	-52.32%

Winner

RRGB

+20.92%

AKTX

-26.51%

Winner

RRGB

+128.73%

AKTX

+37.63%

Winner

RRGB

+126.88%

AKTX

-14.79%

Winner

RRGB

+52.62%

AKTX

-79.67%

5Y(CAGR)

Winner

RRGB

-19.98%

AKTX

-64.07%

10Y(CAGR)

Winner

RRGB

-15.84%

AKTX

-50.11%

Max(CAGR)

Winner

RRGB

-1.53%

AKTX

-52.32%

RRGB vs AKTX - Annual Returns (2002 - 2026)

Returns include dividend reinvestment.

Year	RRGB	AKTX
2026	+103.86%	-30.95%
2025	-28.57%	-76.12%
2024	-53.59%	-57.88%
2023	+114.63%	-68.39%
2022	-67.63%	-68.88%
2021	-10.31%	-17.13%
2020	-41.73%	+6.32%
2019	+23.35%	+5.11%
2018	-51.06%	-64.24%
2017	+3.39%	-42.27%
2016	-5.91%	-48.42%
2015	-19.19%	-53.97%
2014	+8.10%	N/A
2013	+107.56%	N/A
2012	+26.81%	N/A
2011	+28.00%	N/A
2010	+20.96%	N/A
2009	+5.67%	N/A
2008	-47.41%	N/A
2007	-8.60%	N/A
2006	-29.21%	N/A
2005	+0.67%	N/A
2004	+78.89%	N/A
2003	+141.44%	N/A
2002	+4.26%	N/A

RRGB vs AKTX Drawdown Comparison

The maximum drawdown for RRGB was -97.24%, occurring on Apr 24, 2025. This drawdown has not yet recovered.

The maximum drawdown for AKTX was -99.99%, occurring on May 12, 2026. This drawdown has not yet recovered.

The current RRGB drawdown is -90.91%. The current AKTX drawdown is -99.97%.

Rank	RRGB	AKTX
#1	-97.24% Aug 5, 2015 - Apr 24, 2025	-99.99% Sep 21, 2015 - May 12, 2026
#2	-85.70% Jun 29, 2005 - Aug 19, 2013	N/A
#3	-42.85% Nov 5, 2013 - Mar 2, 2015	N/A
#4	-29.77% Sep 3, 2002 - Nov 19, 2002	N/A
#5	-24.09% Jan 23, 2003 - Apr 4, 2003	N/A
#6	-19.66% Mar 24, 2015 - Jul 9, 2015	N/A
#7	-19.49% Dec 30, 2003 - Jul 27, 2004	N/A
#8	-18.36% Dec 1, 2004 - May 23, 2005	N/A
#9	-16.93% Nov 4, 2003 - Dec 22, 2003	N/A
#10	-15.48% Dec 9, 2002 - Jan 16, 2003	N/A
#11	-10.69% Jul 23, 2002 - Sep 3, 2002	N/A
#12	-9.30% Jul 30, 2004 - Aug 18, 2004	N/A
#13	-9.18% Mar 2, 2015 - Mar 23, 2015	N/A
#14	-8.85% Oct 5, 2004 - Nov 9, 2004	N/A
#15	-8.76% Aug 20, 2003 - Sep 2, 2003	N/A