Tech Takes a BreatherThough other market segments have performed well since the S&P 500 Index printed lows in late 2022, the dominant sector has been tech stocks, with cash-rich, “growthy,” mega-cap tech stocks doing the heavy lifting. For example, chip leader Nvidia ((NVDA) is up more than 200% over the past year while its market cap has ballooned to more than $2 trillion. That said, investors need to observe subtle changes on Wall Street and track which groups are garnering attention.Over the past few wee ...