The European's drug regulator said on Friday that it had discovered a possible link between very rare heart inflammation and COVID-19 vaccines

from Pfizer-BioNTech and Moderna, but that the benefits outweighed any risks. According to the report, cases occurred more frequently after the second dose and in younger adult men. This is consistent with findings made in the United States last month.

Symptoms of the conditions include shortness of breath, palpitations, and chest pain.

On Friday, Moderna's stock was mostly flat, while Pfizer's rose 1% as of 10:40am PST.

On Thursday, Instacart named Facebook Inc app head Fidji Simo as CEO,

bringing big tech expertise ahead of the U.S. grocery delivery firm's expected stock market listing. Just a few days after a funding round valued the company at $39 billion, Instacart was considering going public through a direct listing.

Alibaba, the Chinese e-commerce giant, aims to deliver goods from China to anywhere in the world in 72 hours

and charges a subscription fee of only $3. Amazon's faster service is only available in 21 countries and comes with an annual subscription plan that ranges from $13 in India to $130 in the United Kingdom. Both companies are competing for a piece of the global market, which is expected to be worth $1.4 trillion by 2025.

Alibaba's shares rose more than 3% while Amazon fell 0.15% on Friday.

Tesla (TSLA) China sales were up in June,

and the automaker also unveiled a lower-cost version of its made-in-China Model Y crossover. According to the China Passenger Car Association, Tesla sold 33,155 EVs in June, including 21,532 locally manufactured Model 3 sedans and 11,623 Model Y crossovers. Tesla set a quarterly delivery record, roughly meeting Q2 forecasts. The EV manufacturer reported last week that it delivered 201,250 vehicles worldwide in the second quarter, up from 184,800 in the first quarter and 90,900 a year ago. In the midst of a market sell-off, Tesla stock fell below key moving averages on Wednesday. However, its shares rose 1.27 percent on Thursday, while the broader markets fell about 1%.

The stock of Virgin Galactic (ticker: SPCE) increased 17.3 percent on Thursday.

Both the S

Moderna shares rose about 5% while the broader markets fell about 1% on Thursday today.

There are serveral news about COVID-19 worldwide. Argentina on Thursday announced a COVID-19 vaccine deal with Moderna although thte number of dosed is unclosed. Japan just declared a National Emergency due to Covid-19 before this month's Summer Olympics. Moderna also announced that it has begun phase 1/2 trial for experimental flu vaccine with MRNA.

Since their February peak, China's tech titans have lost $823 billion in market value.

Authorities issued a broad warning to the country's largest corporations on Tuesday, vowing to tighten oversight of data security and overseas listings just days after Didi Global Inc.'s contentious decision to go public in the United States. Tencent Holdings Ltd., Alibaba Group Holding Ltd., JD.Com Inc., Baidu Inc., and Meituan have all seen their stock prices fall 3.16%, 3.92%, 2.49%, 5.75%, 3.74%, respectively, as a result of this. Did fell about 20% on Monday, and another 5.88% today.

Amazon's shares rose 0.94% in contrast to a declining S

Pelosi stock options purchases revealed.

According to a financial disclosure form filed last week, Paul Pelosi, the husband of House Speaker Nancy Pelosi and an investment manager, purchased up to $11 million in mega-cap tech stocks (including Amazon, Google, Apple, and Nvidia) in May and June. Paul Pelosi purchased up to $1 million in Tesla call options earlier this year.

Vaccine stocks Moderna (MRNA), BioNTech (BNTX), and Novavax (NVAX) all fell 4.5%, 3.6%, and 13.24%, repectively, on Wednesday

as the highly contagious Delta variant became the most common Covid strain in the United States. According to medical experts, the Delta variant is more contagious and may result in more severe symptoms than the original strain or other mutations. Delta now accounts for 51.7 percent of all cases in the United States. It has surpassed Alpha, which was discovered in the United Kingdom and is responsible for an estimated 28.7 percent.