The bond storm quietened a bit overnight but left equity markets bruised, with an uneasy calm hanging over markets as the U.S. Treasury prepares to sell 20-year debt later on Wednesday.
Attention will also turn to the minutes of the Federal Reserve's split meeting in July, which could help resolve some of the uncertainty around the central bank's views on persistently elevated inflation.
U.S. yields remain near multi-decade highs, but they got some relief following the release of a below-forecast U.S. industrial production report on Tuesday. Still, discussion continues to swirl about what exactly has been driving this latest blowout in borrowing costs, especially given that markets now anticipate less Fed policy tightening than they did only a few weeks ago.
Analysts reckon inflation concerns are only part of the problem, as long-term inflation expectations remain contained. They point instead to the so-called "term premium" on long bonds being demanded by investors to compensate for the uncertainties surrounding borrowing costs and debt sustainability over the horizon. That premium is near its highest level in a decade.
Energy and trade developments
Meanwhile, there was little relief on the energy front heading into Wednesday, with crude oil prices still pumped up after the latest negative turn in the Iran conflict this week. The real pressure is building not in crude, however, but in the markets for refined products, such as diesel and home heating.
With global refining capacity under strain, the so-called "crack spread" between crude futures and diesel futures has climbed to a record high this week. This suggests that households and businesses could face higher fuel costs moving into winter.
Elsewhere, there was some cheer in U.S.-Canada trade relations as President Donald Trump paused a planned 50% tariff increase on a range of Canadian goods for at least three days as both sides signalled progress in talks. The tariffs were due to hit this week.
China AI frenzy and Unitree debut
In China, meantime, the AI stock market frenzy intensified as humanoid robot maker Unitree surged about 600% on its market debut, with retail investors flocking to the IPO.
Unitree, which competes with Hyundai Motor Group-owned Boston Dynamics and Tesla, has drawn global attention for its robots that run, dance and perform martial arts. The stock surged 600% at one point after its debut on the tech-focused STAR Market, valuing the company at around $50 billion.
The startup has backing from some of China's most influential tech firms, including Tencent, Alibaba and DeepSeek. At least a half dozen other Chinese humanoid robotics firms are preparing to go public.