{"id":88718,"date":"2026-02-20T11:54:34","date_gmt":"2026-02-20T14:54:34","guid":{"rendered":"https:\/\/ubirataonline.com.br\/investors-brace-for-knee-jerk-market-reaction-to-a-coming-supreme-court-tariff-decision\/"},"modified":"2026-02-20T11:54:34","modified_gmt":"2026-02-20T14:54:34","slug":"investors-brace-for-knee-jerk-market-reaction-to-a-coming-supreme-court-tariff-decision","status":"publish","type":"post","link":"https:\/\/ubirataonline.com.br\/en\/investors-brace-for-knee-jerk-market-reaction-to-a-coming-supreme-court-tariff-decision\/","title":{"rendered":"Investors brace for ‘knee-jerk market reaction’ to a coming Supreme Court tariff decision"},"content":{"rendered":"

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The US Supreme Court will convene Friday at 10 a.m. ET for the first time in weeks, with markets keyed in on a possible decision around tariffs.<\/p>\n

A decision in the case, Learning Resources, Inc. v. Trump, will have significant ramifications for US trade, ranging from President Trump’s “Liberation Day” tariffs that have spanned the globe to his regular threats aimed at specific nations.<\/p>\n

In imposing many of his sweeping tariffs over the past 14 months, Trump has cited a 1977 law called the International Emergency Economic Powers Act (IEEPA). This case concerns whether it allows tariffs to be imposed as a remedy for the economic emergencies Trump has declared under the law.<\/p>\n

At stake is more than $175 billion in tariffs that have been collected under this law, the Penn-Wharton Budget Model offered Friday in a new analysis for Reuters<\/a>.<\/p>\n

A host of outcomes remains possible from these tariffs being upheld to refunds of that money being ordered, with perhaps the only certainty for investors being that markets will react regardless of how the decision goes.<\/p>\n

But there’s little sense that anything the Supreme Court delivers will be the final word on the issue.<\/p>\n

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The Supreme Court meets on Feb. 20 with a possible decision on the legality of the Trump administration’s tariffs. (Andrew Harnik\/Getty Images) \u00b7<\/span> Andrew Harnik via Getty Images<\/span><\/figcaption><\/figure>\n

Researchers at JPMorgan offered a variety of scenarios Thursday for how things might play out: a victory for Trump that upholds his tariff regime, a defeat that strikes it down, or even a third outcome in which tariffs are struck down only after the midterms. Any of those could lead to an immediate swing in the S&P 500 (^GSPC<\/a>) from down 1% to up 2%, depending on the specifics, the researchers wrote.<\/p>\n

Tobin Marcus of Wolfe Research offered a prediction of a limited ruling in which the White House’s power to use IEEPA to implement tariffs is knocked down, but without demanding refunds. In that scenario, he wrote, “we’d expect a knee-jerk market reaction with equities higher (especially for major importers) and bonds lower, but if so, we wouldn’t bet on those moves being durable.”<\/p>\n

Terry Haines of Pangaea Policy wrote in his own note that “investors should prepare for immediate markets hype-based overreaction followed by a quick comedown.”<\/p>\n

He added that the likeliest end result, no matter what the headlines say, is that “tariffs are here to stay.”<\/p>\n

Read more: <\/em>What Trump’s tariffs mean for the economy and your wallet<\/em><\/a><\/p>\n

Observers also have no certainty that Friday will be the climactic day.<\/p>\n

The Supreme Court posts in advance when it may announce opinions in cases before the court, but it does not say which opinions are being released until the court is in session. The court has also announced that decisions could come next Tuesday (the date of President Trump’s State of the Union address) or Wednesday, Feb. 25.<\/p>\n<\/p><\/div>\n