The Nasdaq Composite surged approximately 15% in April. This rally marked the index's best monthly performance since 2020. The gains reversed first-quarter losses and pushed the broader U.S. market into positive territory for the year.

Strong earnings from technology giants and artificial intelligence enthusiasm fueled the recovery. The technology sector contributed more than half of the total market rebound during the month. Easing geopolitical tensions also improved investor sentiment.

Five mega-cap firms drove both the first-quarter decline and the April recovery. These companies include Nvidia, Apple, Microsoft, Amazon, and Alphabet. Market concentration remains a key theme as a few firms exert outsized influence on overall performance.