TRENDING: Biotech Firm Unveils New Promise For Hard-To-Treat Lung Cancer After a rocky start, the S&P 500 has delivered an impressive year. From its April lows, the index has surged as much as 43% and consistently held above its 50-day moving average. However, cracks are beginning to appear. Many analysts have raised concerns about stretched valuations — particularly among the highflying Magnificent Seven. That group now accounts for an increasingly large share of the index. With the S&P 500 once again test ...