AKTX vs RRGB

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

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

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

AKTX vs RRGB - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

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

Market Cap

AKTX

$148M

Winner

RRGB

$149M

Max Drawdown

AKTX

99.99%

Winner

RRGB

97.24%

Sharpe Ratio

AKTX

0.25

Winner

RRGB

0.81

5Y Beta

Winner

AKTX

0.50

RRGB

0.84

Industry

AKTX

Biotechnology

RRGB

Restaurants

P/E Ratio

Winner

AKTX

-8.66

RRGB

-5.51

Forward P/E

AKTX

N/A

RRGB

18.69

PEG Ratio

Winner

AKTX

0.00

RRGB

1.36

5Y EPS CAGR

AKTX

N/A

RRGB

-26.90%

Debt to Equity

AKTX

0.00%

Winner

RRGB

-160.47%

Free Cash Flow Yield

AKTX

-6.52%

Winner

RRGB

16.37%

P/S Ratio

AKTX

478368.50

Winner

RRGB

0.13

P/B Ratio

Winner

AKTX

1.14

RRGB

48.90

AKTX vs RRGB - Historical Returns

Returns include dividend reinvestment.

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

AKTX

-26.51%

Winner

RRGB

+20.92%

AKTX

+37.63%

Winner

RRGB

+128.73%

AKTX

-14.79%

Winner

RRGB

+126.88%

AKTX

-79.67%

Winner

RRGB

+52.62%

5Y(CAGR)

AKTX

-64.07%

Winner

RRGB

-19.98%

10Y(CAGR)

AKTX

-50.11%

Winner

RRGB

-15.84%

Max(CAGR)

AKTX

-52.32%

Winner

RRGB

-1.53%

AKTX vs RRGB - Annual Returns (2002 - 2026)

Returns include dividend reinvestment.

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

AKTX vs RRGB Drawdown Comparison

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

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

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

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