A prominent Wall Street sentiment gauge, colloquially known as the 'theme-o-meter,' is flashing signals that the artificial intelligence bull market has regained momentum.

The indicator points to a resurgence in investor appetite for AI-related equities, suggesting that the thematic trade remains a central driver of market direction despite recent periods of consolidation.

This renewed interest comes as the composition of the bull market continues to evolve.

The technology stocks currently leading the charge exhibit significantly higher volatility than the established giants that defined earlier phases of the rally.

This shift in risk profile means that while upside potential remains, the swings in valuation are more pronounced, requiring tighter risk management from portfolio managers.

The divergence between the 'old guard' and the new wave of AI beneficiaries highlights a broader structural change in equity markets.