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July 20, 2020, 11:03 a.m. EDT

AstraZeneca's stock falls 3% as results from early-stage study on coronavirus vaccine are published

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By Jaimy Lee

Shares of AstraZeneca /zigman2/quotes/200304487/composite AZN -0.03% /zigman2/quotes/203048482/delayed UK:AZN -0.60% were down 3.4% in trading on Monday after a medical journal published a study that found the company's COVID-19 vaccine candidate produced antibody and T-cell responses in participants in a Phase 1/2 clinical trial. AstraZeneca is developing the experimental vaccine with the University of Oxford; the study was published in The Lancet. The single-blind, randomized, controlled trial found that neutralizing antibody responses were reported in 91% of 35 patients when utilizing one test and 100% of 35 patients when using a different test. It also found that T-cell responses peaked on day 14. "A single dose elicited both humoral and cellular responses against SARS-CoV-2, with a booster immunization augmenting neutralizing antibody titers," the study's authors wrote. BioNTech /zigman2/quotes/214419716/composite BNTX +5.96% and Pfizer Inc. /zigman2/quotes/202877789/composite PFE -0.02% , which are also developing a COVID-19 vaccine, said earlier on Monday that their vaccine candidate produced a T-cell response in participants in an early-stage trial in Germany. AstraZeneca's stock has gained 21.3% year-to-date, in comparison with the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.47% , which is down 0.2%.

/zigman2/quotes/200304487/composite
US : U.S.: Nasdaq
$ 61.77
-0.02 -0.03%
Volume: 3.14M
Oct. 25, 2021 4:00p
P/E Ratio
43.12
Dividend Yield
2.22%
Market Cap
$191.93 billion
Rev. per Employee
$362,602
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/zigman2/quotes/203048482/delayed
UK : U.K.: London
8,942.00 p
-54.00 -0.60%
Volume: 957,185
Oct. 25, 2021 4:35p
P/E Ratio
42.13
Dividend Yield
2.26%
Market Cap
£139.36 billion
Rev. per Employee
£282,763
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/zigman2/quotes/214419716/composite
US : U.S.: Nasdaq
$ 294.92
+16.58 +5.96%
Volume: 2.85M
Oct. 25, 2021 4:00p
P/E Ratio
15.48
Dividend Yield
N/A
Market Cap
$67.50 billion
Rev. per Employee
$283,276
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/zigman2/quotes/202877789/composite
US : U.S.: NYSE
$ 43.15
-0.01 -0.02%
Volume: 22.85M
Oct. 25, 2021 4:03p
P/E Ratio
18.48
Dividend Yield
3.62%
Market Cap
$241.98 billion
Rev. per Employee
$533,860
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/zigman2/quotes/210599714/realtime
US : S&P US
4,566.48
+21.58 +0.47%
Volume: 1.85B
Oct. 25, 2021 5:26p
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