
The S&P 500 posted its best profit-margin performance in over 15 years, largely fueled by strong earnings from major Big Tech companies like Amazon, which saw a 77% net income increase in Q1. While financial, industrial, and utilities sectors also contributed, many consumer-focused companies struggled due to geopolitical tensions such as the Iran war. This highlights a growing performance gap within the index, with tech giants carrying much of the weight. Investors should watch how these dynamics evolve amid ongoing global uncertainties.