ATRA vs ADAP

Comparison between Atara Biotherapeutics Inc (ATRA, Company) and Adaptimmune Therapeutics plc American Depositary Shares (ADAP, Company).

Both ATRA and ADAP are from the Healthcare sector.

5-Year PerformanceATRA has outperformed ADAP, delivering a return of -51.3% compared to -59.1%

ATRA vs ADAP - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	ATRA(COMPANY)	ADAP(COMPANY)
Market Cap	$87M	$87M
Max Drawdown	99.74%	99.81%
Sharpe Ratio	0.58	-0.21
5Y Beta	1.30	N/A
Industry	Biotechnology	Biotechnology
P/E Ratio	-4.48	-0.50
Forward P/E	3.63	N/A
5Y EPS CAGR	-53.66%	N/A
Debt to Equity	0.00%	423.98%
Free Cash Flow Yield	-25.13%	N/A
P/S Ratio	N/A	1.39
P/B Ratio	N/A	-1.23

Market Cap

Winner

ATRA

$87M

ADAP

$87M

Max Drawdown

Winner

ATRA

99.74%

ADAP

99.81%

Sharpe Ratio

Winner

ATRA

0.58

ADAP

-0.21

5Y Beta

ATRA

1.30

ADAP

N/A

Industry

ATRA

Biotechnology

ADAP

Biotechnology

P/E Ratio

Winner

ATRA

-4.48

ADAP

-0.50

Forward P/E

ATRA

3.63

ADAP

N/A

5Y EPS CAGR

ATRA

-53.66%

ADAP

N/A

Debt to Equity

Winner

ATRA

0.00%

ADAP

423.98%

Free Cash Flow Yield

ATRA

-25.13%

ADAP

N/A

P/S Ratio

ATRA

N/A

ADAP

1.39

P/B Ratio

ATRA

N/A

ADAP

-1.23

ATRA vs ADAP - Historical Returns

Returns include dividend reinvestment.

Period	ATRA	ADAP
1 month	-1.85%	-62.65%
3 months	-18.80%	-45.10%
6 months	+91.24%	-80.19%
1 year	-29.84%	-92.55%
5 years(CAGR)	-51.32%	-59.08%
10 years(CAGR)	-33.85%	-40.87%
Max(CAGR)	-25.26%	-41.82%

Winner

ATRA

-1.85%

ADAP

-62.65%

Winner

ATRA

-18.80%

ADAP

-45.10%

Winner

ATRA

+91.24%

ADAP

-80.19%

Winner

ATRA

-29.84%

ADAP

-92.55%

5Y(CAGR)

Winner

ATRA

-51.32%

ADAP

-59.08%

10Y(CAGR)

Winner

ATRA

-33.85%

ADAP

-40.87%

Max(CAGR)

Winner

ATRA

-25.26%

ADAP

-41.82%

ATRA vs ADAP - Annual Returns (2014 - 2026)

Returns include dividend reinvestment.

Year	ATRA	ADAP
2026	-52.11%	N/A
2025	+27.75%	-91.19%
2024	+10.94%	-27.79%
2023	-84.37%	-52.51%
2022	-80.58%	-64.04%
2021	-19.76%	-37.60%
2020	+19.62%	+341.80%
2019	-53.29%	-78.34%
2018	+91.93%	-19.01%
2017	+20.07%	+62.14%
2016	-40.96%	-65.74%
2015	-1.09%	-24.62%
2014	+151.17%	N/A

ATRA vs ADAP Drawdown Comparison

The maximum drawdown for ATRA was -99.74%, occurring on Feb 20, 2026. This drawdown has not yet recovered.

The maximum drawdown for ADAP was -99.81%, occurring on Sep 5, 2025. This drawdown has not yet recovered.

The current ATRA drawdown is -99.47%. The current ADAP drawdown is -99.74%.

Rank	ATRA	ADAP
#1	-99.74% Apr 23, 2015 - Feb 20, 2026	-99.81% Jun 16, 2015 - Sep 5, 2025
#2	-43.40% Dec 2, 2014 - Mar 12, 2015	-14.05% May 7, 2015 - Jun 11, 2015
#3	-21.57% Nov 7, 2014 - Dec 2, 2014	N/A
#4	-10.42% Mar 23, 2015 - Mar 30, 2015	N/A
#5	-7.46% Oct 20, 2014 - Oct 24, 2014	N/A
#6	-7.11% Oct 28, 2014 - Nov 3, 2014	N/A
#7	-6.34% Mar 30, 2015 - Apr 2, 2015	N/A
#8	-5.13% Mar 12, 2015 - Mar 17, 2015	N/A
#9	-4.65% Mar 17, 2015 - Mar 19, 2015	N/A
#10	-3.50% Apr 2, 2015 - Apr 8, 2015	N/A
#11	-1.95% Apr 16, 2015 - Apr 20, 2015	N/A
#12	-0.44% Nov 5, 2014 - Nov 7, 2014	N/A
#13	-0.27% Apr 13, 2015 - Apr 16, 2015	N/A