A mid-year review of the US stock market in 2026 has highlighted a boom in storage and AI chips, with some stocks experiencing significant surges. However, market performance has been mixed, with some days seeing major gains and others experiencing declines, influenced by various factors such as non-farm payroll numbers and global tensions. The overall market trend is uncertain, with some stocks like Intel experiencing large gains in after-hours trading, while others like SanDisk have dropped significantly.