Here Are the Top-Performing S&P 500 Stocks From 2025

Market Overview - The S&P 500 has achieved a total return exceeding 17% year-to-date in 2025, marking the continuation of a bullish trend into its fourth year [1] - The year has been characterized by volatility, with the S&P 500 nearly entering a bear market early in 2025 due to tariff-related issues [2] - A subsequent V-shaped rally occurred as inflation trends improved and corporate earnings exceeded expectations, driving the S&P 500 to record highs [3] Sector Performance - The information technology and communication services sectors led the market in 2025, driven by the artificial intelligence theme [7] - However, the AI-driven rally has recently stalled, particularly in December, indicating potential challenges ahead [7] Santa Claus Rally Insights - The Santa Claus Rally period, which typically shows strong performance, has seen negative returns thus far, raising concerns for 2026 based on historical trends [8] - Negative returns during this period have historically preceded bear markets or opportunities to buy stocks at lower prices later in the year [8] Top Performing Companies - Sandisk (SNDK): Achieved over 560% growth since its February 2025 debut, with projected fiscal 2026 EPS growth of over 300% to $12.59 per share, driven by strong NAND pricing and AI-related demand [12][13] - Western Digital (WDC): Delivered over 290% return year-to-date, with fiscal 2026 adjusted EPS projected at $7.66, reflecting a 55% increase from the previous year [15][16] - Micron (MU): Reported a nearly 49% year-over-year revenue increase to around $37 billion in fiscal 2025, with a stock surge of nearly 250% driven by high demand for high-bandwidth memory [22][24] Industry Trends - The computer storage devices industry, including Sandisk and Western Digital, ranks in the top 8% of Zacks Ranked Industries, benefiting from the explosive growth in AI-powered storage markets projected to reach $187.61 billion by 2035 [19] - Data center operators are expanding infrastructure rapidly, sustaining demand for both HDDs and NAND flash-based solutions [19]