Working from home went from optional to mandatory across Wall Street this week as financial firms reported their first confirmed cases of coronavirus and the outbreak triggered a state of emergency in New York City.
A report into the impact of Brexit on banking and finance firms says some £900bn in financial firms' assets have been moved out of the UK. It adds this has cost £3bn-4bn and involves 5,000 expected staff moves or local hires, and that figure will rise.
Robot trading has accelerated this week's market dive and may have sparked the sell-off, experts say. Financial firms use computers programmed with complex sets of instructions known as algorithms, which identify trading opportunities and then strike faster than any human could.