Treasury Yields Spike After Appeals Court Rules Most Trump Tariffs Illegal: Analyst Explains What Could Happen If Ruling Is Upheld

The benchmark 10-year Treasury yield rose four basis points to 4.267%, while the 30-year yield posted a similar gain, trending at 4.96%.
U.S. President Donald Trump holds a cabinet meeting with members of his administration in the Cabinet Room of the White House on August 26, 2025 in Washington, DC. (Photo by Chip Somodevilla/Getty Images)
U.S. President Donald Trump holds a cabinet meeting with members of his administration in the Cabinet Room of the White House on August 26, 2025 in Washington, DC. (Photo by Chip Somodevilla/Getty Images)
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Rounak Jain·Stocktwits
Updated Sep 02, 2025 | 10:59 AM GMT-04
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U.S. Treasury yields rose on Tuesday after a federal appeals court ruled that most of the global tariffs announced by President Donald Trump are illegal.

The benchmark 10-year Treasury yield rose four basis points to 4.267%, while the 30-year yield posted a similar gain, trending at 4.96%.

“If this ruling is upheld, refunds of existing tariffs are on the table which could cause a surge in Treasury issuance and yields,” said Raymond James analyst Ed Mills, according to a CNBC report.

Analysts at Charles Schwab echoed similar sentiments, noting that equity markets are on edge after the appeals court’s ruling on President Trump’s tariffs. “Treasury yields and volatility spiked while tech stocks slumped to start the short week after a court decision ruled most of President Trump's tariffs illegal. The tariffs remain in place on appeal, but the news has markets on edge, judging by global yield climbs,” the firm said in a note. It added that seasonal trends, such as September traditionally being the worst month for Wall Street, also played a role.

Meanwhile, U.S. equities declined in Tuesday’s opening trade. At the time of writing, the SPDR S&P 500 ETF (SPY), which tracks the S&P 500 index, was down 1.17%, while the Invesco QQQ Trust (QQQ) declined 1.41%. Retail sentiment around the S&P 500 ETF on Stocktwits was in the ‘bullish’ territory.

The iShares 7-10 Year Treasury Bond ETF (IEF) was down 0.28% at the time of writing.

Also See: Gold Price Rises As Investors Flock To Safe Haven Amid Growing Uncertainties: Analyst Predicts This Level If Conditions Deteriorate

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