Core Viewpoint - S&P Global (SPGI) has been upgraded to a Zacks Rank 2 (Buy) due to an upward trend in earnings estimates, indicating a positive earnings outlook that may lead to increased stock prices [1][3]. Earnings Estimates and Stock Price Impact - Changes in a company's future earnings potential, as reflected in earnings estimate revisions, are strongly correlated with near-term stock price movements, influenced by institutional investors [4]. - Rising earnings estimates and the subsequent rating upgrade for S&P Global suggest an improvement in the company's underlying business, which could drive the stock price higher [5]. Zacks Rank System - The Zacks Rank stock-rating system classifies stocks into five groups based on earnings estimates, with a strong historical performance, particularly Zacks Rank 1 stocks generating an average annual return of +25% since 1988 [7]. - The Zacks rating system maintains an equal proportion of "buy" and "sell" ratings across its universe of over 4,000 stocks, ensuring that only the top 20% receive a "Strong Buy" or "Buy" rating [9][10]. Specifics on S&P Global - For the fiscal year ending December 2025, S&P Global is expected to earn $17.14 per share, with no year-over-year change, while the Zacks Consensus Estimate has increased by 1% over the past three months [8].