In the year 2025, the escalation of the trade war between the US and China caused market turmoil: US Treasury bonds plummeted, bond yields soared, and the stock market and the dollar both fell.

On April 9, 2025, the trade war between the US and China escalated as the United States imposed a 104% tariff on goods from China, and China responded with an 84% retaliatory tariff, leading to turmoil in global financial markets. The US Treasury market experienced a sell-off, with the 10-year Treasury yield breaking past 4.5% and the 30-year surpassing 5%, marking the largest three-day rise since 1982. US stocks and the dollar both declined, and hedge funds unwinding high-leverage basis trades triggered a bond market crash, spreading panic to global bond markets and safe-haven assets. The demand for US Treasuries weakened, and market confidence took a hit.
Key Updates
04/09 10:11
In the year 2025, the escalation of the trade war between the US and China caused market turmoil: US Treasury bonds plummeted, bond yields soared, and the stock market and the dollar both fell.
On April 9, 2025, the trade war between the US and China escalated as the United States imposed a 104% tariff on goods from China, and China responded with an 84% retaliatory tariff, leading to turmoil in global financial markets. The US Treasury market experienced a sell-off, with the 10-year Treasury yield breaking past 4.5% and the 30-year surpassing 5%, marking the largest three-day rise since 1982. US stocks and the dollar both declined, and hedge funds unwinding high-leverage basis trades triggered a bond market crash, spreading panic to global bond markets and safe-haven assets. The demand for US Treasuries weakened, and market confidence took a hit.
US-China Tariff Standoff Escalates, Shaking Market Confidence
In the early morning of April 9, US President Trump officially implemented a cumulative 104% tariff on Chinese goods, comprising a general 20% tariff, a reciprocal 34% tariff, and a retaliatory 50% tariff. China immediately announced an 84% retaliatory tariff on US goods starting April 10. This tariff standoff quickly triggered global market panic, with investors withdrawing from risk assets, seeking liquidity.
However, unlike in the past, funds did not flow into US Treasury bonds as a safe haven as expected; instead, there was a massive sell-off. Market observers noted that this reflects deep-seated concerns among investors about the stability of US finances and the sustainability of its debt.
Historic Sell-off in US Treasuries, Yields Surge
The yield on the US 10-year Treasury bond surged over 60 basis points in just three days, reaching 4.5% intraday on the 9th, marking the largest single-day increase since September 2022. The 30-year Treasury yield soared 56 basis points in three days, breaking the 5% mark, a new high since November 2023, and the largest three-day increase since 1982.
According to The Guardian, this surge in yields is not driven by changes in economic fundamentals but rather a "disorderly liquidation" in the market. Jim Bianco, founder of Bianco Research, pointed out that this is a liquidity crisis triggered by hedge funds massively unwinding "basis trade" positions.
Basis Trade Blowup, Leverage Unwinding Triggers Chain Reaction
Basis trading is a strategy used by hedge funds to profit from small price differences between cash bonds and futures. Due to limited profit margins, funds typically use high leverage, with leverage ratios often reaching 50 to 100 times. When market volatility is high, these positions may be forced to close due to margin calls, leading to a chain reaction of bond market sell-offs.
Apollo Global Management's chief economist, Torsten Slok, noted that the current market size of basis trading is estimated at $800 billion and is still expanding. Once prime brokers raise margin requirements or tighten financing conditions, hedge funds will have to sell off large amounts of US Treasury positions, creating a liquidity vacuum in the market.
According to Blocktempo, the deleveraging of this basis trade has already led to a nearly 30 basis point surge in the 10-year US Treasury yield in two days, with the 30-year yield rising 21 basis points in a single day, comparable to the market stampede during the COVID-19 pandemic in March 2020.
Bond Market Panic Spreads to Stock and Forex Markets
As US Treasuries plummeted, US stocks were also affected. On April 8, the Dow Jones Industrial Average fell 320 points, a 0.8% drop; the S&P 500 fell 1.6%; the Nasdaq dropped 2.2%; and the Philadelphia Semiconductor Index plunged 3.57%. VIX, the market fear index, surged to a new high since the pandemic, indicating rising risk aversion among investors.
The US dollar was also sold off. The US Dollar Index (DXY) fell to 102.27 on the 9th, a 0.72% drop over five days, and a cumulative 1.45% decline over a month. The dollar fell 0.67% against the yen and 0.66% against the euro, with funds shifting to traditional safe-haven currencies like the yen and Swiss franc, suggesting that the dollar's status as a safe haven is under scrutiny.
Ben Wiltshire, G10 rates trading strategist at Citibank, stated: "The sell-off in US Treasuries may signal a shift in mechanism, where US Treasuries are no longer the safe haven of global fixed income."
Weak Auction Demand Further Erodes Market Confidence
The US Treasury's bond auctions this week also reflected the collapse of market confidence. In the 3-year Treasury auction, direct bidders (including China and Japan) purchased only 6.2%, a five-year low. The 10-year and 30-year Treasury auctions also resulted in underwriters having to absorb large amounts of unsold bonds, indicating a sharp decline in demand for US Treasuries.
Ed Al-Hussainy, senior rate strategist at Columbia Threadneedle, said: "No one in the market wants to touch US Treasuries right now; everyone just wants to get out quickly."
Global Market Chain Reaction, Safe-Haven Assets Fail
The sharp fluctuations in US Treasuries also affected global bond markets. Japan's 30-year Treasury yield surged to a 21-year high, and the UK's 30-year Treasury yield hit a 27-year high. The reassessment of US inflation and Federal Reserve rate cut expectations has led to dramatic shifts in global capital flows.
Even traditional safe-haven assets like gold were affected. Although gold prices briefly exceeded $3,000 per ounce due to increased safe-haven demand, they subsequently fell back as funds shifted to cash.
References
- 美國債券市場暴漲60個點! 資金迅速緊縮 CEO直指:「這是清算風暴」
- 「美債殖利率」的搜尋結果 - 工商時報
- 中美貿易戰:104%對華關稅生效 中美對峙誰先「認慫」? - BBC News 中文
- 川普關稅戰掀「棄美潮」!美元狂跌、美債殖利率飆升
- Dramatic sell-off of US government bonds as tariff war panic deepens
- Market Quick Take - 9 April 2025
- 美債市場風暴:基差交易引爆拋售潮 美國金融體系面臨關鍵48小時? | Anue鉅亨 - 債券
- 美債血崩跌!殖利率飆近3年新高,美國絕望「股債匯三齊跌」
People Also Ask...

With the escalation of the US-China trade war, what impact does the current wave of US Treasury sell-offs have on investment portfolios?

After the escalation of the U.S.-China trade war, why were U.S. Treasuries sold off, and why did safe-haven assets lose their effectiveness?

How come the market is so panicked this time around over the US-China trade war?