Global credit markets are flashing the biggest risk-off signals in more than a year, as investor concerns about technology companies’ artificial intelligence borrowing and rising oil prices are mounting.

High-frequency trading firms are even building their own data centers as they compete for an edge in the AI era.

Optiver Holding BV is looking to secure about $900 million in financing as the market maker seeks to expand its trading activities, according to people familiar with the matter.

Borrowers in the Asia Pacific are slowing deals in the dollar bond market, with the highest yields in more than two years sapping deal momentum.

Segantii Capital Management’s founder Simon Sadler returned to a Hong Kong court this week, as the prosecution delivered its closing argument in a high-profile insider trading case that has gripped the city’s hedge fund community.

Credit markets are showing signs of caution, as surging bond yields, growing inflation fears, and record borrowings make high-grade company debt seem like less of a bastion of safety.

A trader at Vitol Group in India confirmed at least one transaction between his company and Radiant World that Vitol later said wasn’t genuine, adding a further layer of complexity to a saga that has drawn in some of the biggest names in commodity trading.

Kalshi Inc. is filing for regulatory approval to offer the first single-stock perpetual futures in the US and is looking to expand the contracts in commodities to include agriculture, said Tarek Mansour, the company’s co-founder.

Hudson River Trading signed a multiyear deal with CoreWeave Inc. to power its new trading research and models using the tech company’s artificial intelligence computing services.

The Justice Department and a US financial regulator are probing transactions around Radiant World, the private firm that has rapidly risen to become one of the world’s largest iron ore traders, according to people familiar with the matter.

The Justice Department and a US financial regulator are probing transactions around Radiant World, the private firm that has rapidly risen to become one of the world’s largest iron ore traders, according to people familiar with the matter.

A data center developer sold $2.25 billion of green bonds to fund a facility leased to Jane Street Group LLC, joining a flurry of borrowers turning to environmentally focused debt to bankroll the AI infrastructure buildout.

Donald Trump’s social media company has been leaning on Wall Street’s fear of missing out in its pitch for a controversial new subscription to faster feeds from the president’s Truth Social account.

For four hours in July, some of the biggest players in finance put Wall Street’s long-running blockchain experiment to work across an ordinary trading day.

Jane Street has issued $14.6 billion of bonds, part of a broader overhaul of its debt load that will also allow it to fund technology infrastructure and expand its trading strategies.

The Securities and Exchange Commission is considering taking direct control of a controversial database that tracks trades across US equities and options markets after Citadel Securities won a lawsuit challenging its funding last year.

CME Group Inc. and FanDuel are scaling back a joint effort to take on prediction market startups after failing to gain traction in a booming industry that has quickly come to represent a threat to both Wall Street exchanges and traditional sportsbooks.

Jefferies Financial Group Inc. has been told that some of the invoices underpinning its financing to an iron ore trader called Sapphire Minmetals Corp. are not genuine, according to people familiar with the matter.

In a corporate presentation in December 2024, Radiant World boasted of its “diverse network” of suppliers and counterparties.

Bloomberg reporters answer your questions about the rise of nonstop trading and what it means for markets in a Live Q&A on Tuesday, August 4 at 2 p.m. BST.