text:  So the company has been wrestling to sort this out throughout the day. And in the meantime, we've had businesses, banks where payments haven't been going through, trading platforms that have been disrupted, media companies where television channels have gone off the air, including here in the UK. And people are worried about whether they're going to receive their pay this week because payrolls have been disrupted. So it really is one of the biggest IT outages globally that we've ever seen. Theo, what's been the impact on markets?