The US stock market experienced a rally following the Supreme Court's decision to declare emergency tariffs unconstitutional, alleviating a significant inflationary concern. According to NS3.AI, this development comes amid sluggish fourth-quarter GDP growth and rising inflation, which highlight potential stagflation risks. Despite these economic challenges, the market reacted positively, with the Technology sector and Alphabet leading the gains. However, uncertainty persists as the administration may explore alternative tariff measures, and ongoing inflation pressures continue to support expectations for interest rate hikes.