In addition to concerns about the viability of AI spending and whether those expenditures are bearing fruit, a common critique of AI-linked stocks, including those residing in QQQ and QQQM, is that valuations are too frothy. That implies they might be in bubble territory. "And elevated equity valuations were a particular focus in assessing how to think about what those valuations mean in this unique environment where mega cap tech companies are expanding the financing of the AI buildout, as seen with recent ...