The Indian rupee opened the week on a firmer footing, appreciating by about 18 paise against the US dollar after a significant legal development in the United States unsettled currency markets. The gain followed a decline in the dollar overnight, triggered by a US Supreme Court decision that struck down broad tariff measures introduced by President Donald Trump. Market participants interpreted the ruling as a potential easing of global trade tensions, at least temporarily, prompting a shift toward risk assets and emerging market currencies.

In early trade on February 23, the rupee was quoted at ₹90.76 per dollar compared with ₹90.9825 at the previous close. While the move appears modest, it is notable given the recent pressure on the currency amid persistent capital outflows, elevated oil prices, and global monetary tightening expectations. Currency traders indicated that the rupee’s rebound was largely driven by external factors rather than domestic fundamentals.

The legal ruling at the center of the move declared that the imposition of sweeping tariffs on nearly all trading partners exceeded presidential authority and was therefore unconstitutional. Markets initially viewed the decision as a step toward restoring predictability in global trade flows. However, the relief proved short-lived. Shortly after the verdict, the US administration invoked alternative powers under Section 122 of the Trade Act of 1974 to impose a new set of tariffs a blanket 10 percent levy, subsequently raised to 15 percent, to remain in force for up to 150 days unless extended by Congress.

This rapid policy shift has complicated the outlook for global trade and financial markets. Rather than eliminating tariffs, the ruling has effectively reshuffled the legal framework under which they are applied. Analysts say this creates a fresh layer of uncertainty, as businesses and investors must now assess whether the new measures will persist, expand, or face further legal challenges.

For emerging market currencies such as the rupee, the implications are mixed. On one hand, the initial weakening of the dollar provided immediate support. On the other, the continuation of tariff policies under a different mechanism suggests that trade tensions remain unresolved. Currency strategists caution that such uncertainty typically leads to intermittent bouts of dollar strength, as investors seek safe-haven assets during periods of policy unpredictability.

Domestic factors also continue to play a crucial role. Importers reportedly viewed the stronger rupee levels as an opportunity to hedge future dollar payments, which tends to cap further appreciation. At the same time, exporters often step up dollar sales when the rupee approaches psychologically important levels near ₹91 per dollar. This two-way flow can limit sharp moves in either direction.