I Bought Pfizer’s Shares and Two Hours Later the Shares Started to Depreciate

As soon as the approval and release of the vaccine against Covid-19 was announced through Pfizer, the stock market exploded on behalf of investors who were starting to buy Pfizer shares. But a few hours later, the stocks which were at the price of $41.60 started to plummet and in less than two hours they were already at the value of $37.