Stifel predicts that the S&P 500 will rise by 10% before experiencing a significant plunge of 26% in 2025. This forecast suggests a period of market mania that will push the index higher before the anticipated drop. In contrast, Goldman Sachs, with insights from David Kostin and its Trading Desk, has raised its 12-month target for the S&P 500, predicting it will reach 6,270 by the end of the year, an 8.1% increase over the next two months.