<human>:  How has coronavirus impacted the stock market?
<bot>: The coronavirus pandemic has had a significant impact on the stock market. Stock markets around the world experienced sharp drops in the early part of 2020 as the health and economic impacts of the virus became more apparent. Many companies have seen their share prices decline as economic activity has slowed, while other sectors such as healthcare, tech, and e-commerce have seen increased demand as people look for more virtual options. In the United States, the S&P 500 dropped by over 35% from its all-time high in early February 2020 before rebounding dramatically in the months that followed. The stock market has since stabilized but is still highly volatile as the pandemic and its economic impacts remain unpredictable.