Yahoo Finance·2025-10-21 14:09Core Insights - The artificial intelligence (AI) sector is driving significant growth in the utilities sector, transforming traditionally stable utility stocks into high-growth investments [1][3]. - Since the end of 2023, the utilities sector has increased by approximately 43%, making it the third best-performing group in the S&P 500, with a 20% gain this year alone [2][6]. - The demand for energy to support AI infrastructure is expected to benefit energy producers, particularly independent power producers [3][4]. Utilities Sector Performance - The S&P 500 Utilities index has reached multiple all-time highs recently, a notable achievement as it had never recorded back-to-back 20% gains since 1990 [2]. - Independent power producers have emerged as the best-performing stocks within the utilities index, with NRG Energy Inc. rising by 78% in 2025, Constellation Energy Corp. gaining over 60%, and Vistra Corp. increasing by 35% [5]. - Historically, utilities have been viewed as defensive investments, providing reliable cash flow during downturns, but the current rally is occurring during a broader bull market [6][7]. Market Context - The current rally in utilities is notable as it contrasts with other defensive sectors like consumer staples and healthcare, which have seen less than 6% growth this year [7]. - The performance of utilities is particularly striking given that they have outperformed during previous market downturns, such as the dot-com crash and the global financial crisis [6].