stellation Energy (US:CEG) ZACKS·2025-06-03 16:31Market Performance - The S&P 500 recorded its best May performance since 1990, rising over 6% in the month, marking its largest monthly gain since November 2023 [1] - SPDR S&P 500 ETF Trust (SPY) gained 6.3% over the past month, with five highlighted stocks gaining more than 25% [2] Key Drivers of Market Rally - The stock rally was primarily driven by a resurgence in tech stocks due to strong earnings and investor confidence in AI-driven growth [3] - Easing trade tensions contributed to market optimism, with the U.S. temporarily reducing tariffs on Chinese goods from 145% to 30%, and China lowering retaliatory duties from 125% to 10% [4] - The U.S. Court of International Trade blocked much of Trump's existing tariff policy, providing a temporary boost to equities [5] - Economic data showed mixed signals, with the Federal Reserve's preferred inflation measure cooling and the U.S. labor market adding 177,000 jobs, while consumer spending showed signs of slowdown [6] SPY Fundamentals - SPY holds 503 stocks, with no single stock accounting for more than 7% of its assets, indicating a balanced portfolio [8] - The fund has an AUM of $603.5 billion, charges 9 bps in fees per year, and trades an average of 68 million shares daily [9] Best-Performing Stocks - NRG Energy Inc. saw a 36% increase in the past month, with a solid earnings estimate revision of 19 cents and an estimated growth of 10.54% [10] - Seagate Technology jumped about 28% in a month, with a positive earnings estimate revision of 8 cents and an estimated growth of 516.3% [11] - Constellation Energy gained 26.8% in a month, despite a negative earnings estimate revision of 7 cents, with an expected growth rate of 9% [12] - Insulet Corporation rose 26.5%, with a positive earnings estimate revision of 3 cents and an estimated growth rate of 33% [13] - Microchip Technology gained over 25% in a month, with a solid earnings estimate revision of 19 cents and expected earnings to break even this fiscal year [14]