As U.S. financial markets reel from a week of historic swings, industry veterans are drawing on memories from their earliest years on Wall Street, while younger professionals are looking to lessons from history books.
From Jersey City on the East Coast to Los Angeles on the West Coast, American shoppers picked grocery store shelves clean on products ranging from disinfectants to rice, causing retailers to race to restock their stores as the worsening coronavirus crisis stoked fears of shortages.
New York-based banks Citigroup Inc and JPMorgan Chase & Co both reported on Friday that they have employees who have tested positive for the coronavirus.
Corporate America joined the fight against the spread of coronavirus on Friday, as President Donald Trump and executives announced that Google would offer a website to help people determine whether they needed tests and retailers set up drive-through tests in parking lots.
U.S. President Donald Trump said on Friday that four cruise line companies had agreed to suspend outbound cruises for 30 days, at his request, amid the global coronavirus pandemic.
"These are real companies, and they want to do something about it," CNBC's Jim Cramer said.
European airline stocks already battered by the coronavirus plunged again on Thursday, as a U.S. travel ban on much of continental Europe deepened the sector's misery and piled pressure on governments to offer emergency support.
Oil fell a third day as the horror show for crude investors continued on Friday amid panic about evaporating demand from the coronavirus pandemic, with Brent set for its biggest weekly loss since 1991 and U.S. crude heading for its worst week since 2008.
The dollar stood tall on Friday as investors scrambled for the world's most liquid currency amid deepening panic about the coronavirus while the euro nursed losses after the European Central Bank disappointed by not cutting rates.
The fallout from the coronavirus spread across the Pacific on Friday, with travel companies in Australia and New Zealand issuing profit warnings as U.S. airlines rushed to cut flights to Europe in the wake of new U.S. travel restrictions.
Global stock markets crashed on Friday, ending a years-long bull run, with coronavirus panic selling hitting almost every asset class and leaving investors nowhere to hide.
China's Wuhan city, ground zero of the new coronavirus outbreak, reported five new cases on Friday, the second day in a row the tally has been less than 10, while no locally transmitted infections were reported in the rest of the country.
South Korea reported more recoveries from the coronavirus than new infections on Friday for the first time since its outbreak emerged in January, as a downward trend in daily cases raised hopes that Asia's biggest epidemic outside China may be slowing.
Governments and central banks readied more emergency measures to tackle the economic impacts of the coronavirus on Friday as Asian markets suffered their worst weekly crashes since the 2008 financial crisis.
As trading ended on Thursday in Wall Street's worst day for three decades, shell-shocked investors had no idea how much further the market was likely to fall as the coronavirus pandemic spread fear of a global recession.