Cristiano Ronaldo

In mid-June during the UEFA Euro-2020 competition, Portuguese football player Cristiano Ronaldo pushed away two bottles of Coca-Cola that were on the table and picked up a bottle of water instead. This gesture has an adverse impact on Coca-Cola’s shares. Half an hour later, its shares fell by 1.6%. The market value of Coca-Cola also shrank: the manufacturer lost $4 billion. Notably, Coca-Cola denied that Cristiano's actions somehow led to a collapse in its shares. Nevertheless, other football players immediately followed suit, starting a flash mob. For example, a player of the French football team pushed a Heineken beer away from him during a press conference.

Michelle Obama

The wife of former US President Barack Obama is considered by many people a fashion icon. Her impeccable taste and zeal for luxurious brands have made her a big influencer in the fashion industry. The brands she chooses for special occasions always benefit greatly in terms of stock growth. For example, in 2016, she appeared in public wearing a saucy dress that was specially created for her by Donatella Versace. This was her last dinner in the status of the first lady of the United States. That evening, she dazzled in a dress worth $11,000. The choice of a dress did not go unnoticed. Watchful investors hurriedly bought shares of Capri, a company that belongs to the Versace brand. Its shares rose by almost 5%. Analysts gave the name to this increase 'Michelle Markup'.

Donald Trump

Former US President Donald Trump often openly criticized large companies on social networks. Each of his attacks cost companies millions of dollars. The most resonant case occurred in 2016. Trump tweeted that "Boeing is building a brand new 747 Air Force One for future presidents, but costs are out of control, more than $4 billion. Cancel order!" As a result, the company's shares fell by $2. During his presidency, Trump has negatively influenced the market capitalization of enterprises with his tweets many times. For example, due to his infamous tweets, Lockheed Martin and Toyota lost $3.5 billion and $1.2 billion respectively.

Kylie Jenner

Insta model and businesswoman Kylie Jenner is now on the list of the richest women in the United States. She is also considered one of the most popular American bloggers. Her Instagram account has more than 245 million subscribers and more than 38 million people follow her on Twitter. It is hardly surprising that her tweet about Snapchat received such a big response in 2018 – 355,000 likes and 67,000 comments. Jenner asked her readers a rhetorical question. "Sooo does anyone else not open Snapchat anymore?" she asked her Twitter followers. "Or is it just me... ugh this is so sad." Hence, Kylie Jenner single-handedly wiped $1.3 billion off of Snap’s market capitalization. The company’s shares decreased by more than 6%.

Elon Musk

Tesla CEO is considered one of the main influencers of our time. His tweets have changed the balance of power in the crypto market many times, as well as in the stock market. The impact of the techno king has become so alarming that the US Securities and Exchange Commission banned Musk from mentioning his company on the social network without the consent of lawyers. Earlier, Elon sent down the share price of Samsung by more than 8% with just one post and at the same time he boosted the price of Panasonic shares by more than 3%. He states that Panasonic is the only company Tesla is willing to cooperate with when it comes to battery production.

Oprah Winfrey

In 2015, the US TV star acquired a 10% stake in Weight Watchers, a company that creates weight-loss programs. Winfrey bought her shares at $6.79 apiece for a total investment of $43 million. When she shared this news on Twitter, the company’s stock value ballooned. "I believe in the program so much I decided to invest in the company and partner in its evolution," she stressed. In two days, Weight Watchers’ stocks had surged by more than 130%. Winfrey actively promoted the services and products of Weight Watchers. The value of the companies ' shares had been steadily growing for three years. Oprah managed to make good money out of her investment. However, her greatest victory was the final result: the famous TV host has lost 28 kg. thanks to the company’s diet programs.

Hillary Clinton

In 2015, when Clinton participated in the presidential election, there was a nasty scandal around Turing Pharmaceuticals. The pharmaceutical company acquired the rights to manufacture medicines that are in demand in the United States. At the same time, it immediately raised the prices of vital drugs. For example, the cost of Daraprim, which is prescribed to patients with immune system disorders, has increased by more than 40 times. This caused outrage in society. Clinton promised to sort it out. At that time, Turing’s stocks were not traded on the stock exchange, but the presidential candidate's statement adversely affected the shares of other companies from the pharmaceutical sector.