ADAP vs QSEA

Comparison between Adaptimmune Therapeutics plc American Depositary Shares (ADAP, Company) and Quartzsea Acquisition Corp (QSEA, Company).

ADAP is from the Healthcare sector, while QSEA is from the Financial Services sector.

ADAP vs QSEA - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	ADAP(COMPANY)	QSEA(COMPANY)
Market Cap	$87M	$87M
Max Drawdown	99.81%	0.77%
Sharpe Ratio	-0.21	0.26
5Y Beta	N/A	-0.01
Industry	Biotechnology	Shell Companies
P/E Ratio	-0.50	130.80
Debt to Equity	423.98%	0.00%
Free Cash Flow Yield	N/A	-1.46%
P/S Ratio	1.39	N/A
P/B Ratio	-1.23	1.47

Market Cap

Winner

ADAP

$87M

QSEA

$87M

Max Drawdown

ADAP

99.81%

Winner

QSEA

0.77%

Sharpe Ratio

ADAP

-0.21

Winner

QSEA

0.26

5Y Beta

ADAP

N/A

QSEA

-0.01

Industry

ADAP

Biotechnology

QSEA

Shell Companies

P/E Ratio

Winner

ADAP

-0.50

QSEA

130.80

Debt to Equity

ADAP

423.98%

Winner

QSEA

0.00%

Free Cash Flow Yield

ADAP

N/A

QSEA

-1.46%

P/S Ratio

ADAP

1.39

QSEA

N/A

P/B Ratio

Winner

ADAP

-1.23

QSEA

1.47

ADAP vs QSEA - Historical Returns

Returns include dividend reinvestment.

Period	ADAP	QSEA
1 month	-62.65%	+0.96%
3 months	-45.10%	+1.74%
6 months	-80.19%	+2.94%
1 year	-92.55%	+4.28%
5 years(CAGR)	-59.08%	N/A
10 years(CAGR)	-40.87%	N/A
Max(CAGR)	-41.82%	+4.69%

ADAP

-62.65%

Winner

QSEA

+0.96%

ADAP

-45.10%

Winner

QSEA

+1.74%

ADAP

-80.19%

Winner

QSEA

+2.94%

ADAP

-92.55%

Winner

QSEA

+4.28%

5Y(CAGR)

ADAP

-59.08%

QSEA

N/A

10Y(CAGR)

ADAP

-40.87%

QSEA

N/A

Max(CAGR)

ADAP

-41.82%

Winner

QSEA

+4.69%

ADAP vs QSEA - Annual Returns (2015 - 2026)

Returns include dividend reinvestment.

Year	ADAP	QSEA
2026	N/A	+2.74%
2025	-91.19%	+2.30%
2024	-27.79%	N/A
2023	-52.51%	N/A
2022	-64.04%	N/A
2021	-37.60%	N/A
2020	+341.80%	N/A
2019	-78.34%	N/A
2018	-19.01%	N/A
2017	+62.14%	N/A
2016	-65.74%	N/A
2015	-24.62%	N/A

ADAP vs QSEA Drawdown Comparison

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

The maximum drawdown for QSEA was -0.77%, occurring on Nov 28, 2025. Recovery took 10 trading sessions.

The current ADAP drawdown is -99.74%.

Rank	ADAP	QSEA
#1	-99.81% Jun 16, 2015 - Sep 5, 2025	-0.77% Nov 25, 2025 - Dec 10, 2025
#2	-14.05% May 7, 2015 - Jun 11, 2015	-0.59% Jul 21, 2025 - Oct 9, 2025
#3	N/A	-0.50% Jun 11, 2025 - Jul 10, 2025
#4	N/A	-0.39% Jan 20, 2026 - Feb 4, 2026
#5	N/A	-0.38% Apr 21, 2026 - May 5, 2026
#6	N/A	-0.38% May 11, 2026 - May 13, 2026
#7	N/A	-0.29% Dec 10, 2025 - Jan 5, 2026
#8	N/A	-0.29% Jan 5, 2026 - Jan 13, 2026
#9	N/A	-0.29% Feb 25, 2026 - Mar 6, 2026
#10	N/A	-0.29% May 13, 2026 - May 26, 2026
#11	N/A	-0.29% Mar 20, 2026 - Mar 26, 2026
#12	N/A	-0.24% May 26, 2026 - May 29, 2026
#13	N/A	-0.20% May 12, 2025 - May 27, 2025
#14	N/A	-0.20% Jul 10, 2025 - Jul 18, 2025
#15	N/A	-0.20% Nov 19, 2025 - Nov 25, 2025

Correlation

Correlation between ADAP and QSEA is -0.90 which considered as a very strong negative correlation - the stocks move almost identically in opposite directions.

-0.90

-101