Even Wall Street thinks this has gone too far. Some 202 panelists managing $550 billion in AUM are raising a concern unseen since 2005, according to BofA.

The biggest tech companies in the market have an advantage that didn't exist during dotcom bubble, say fund managers overseeing tens of billions of dollars.

"Past innovation-driven booms—like the 1920s and in the 1990s—have led the market to overpay for future profits even though the underlying innovations were real."

Even Wall Street thinks this has gone too far. Some 202 panelists managing $550 billion in AUM are raising a concern unseen since 2005, according to BofA.

Bank of America’s Global Fund Manager Survey found concerns about an AI bubble are mounting.

The bond market has the money to fund the AI boom, but its own diversification rules could make borrowing harder than expected even for blue chip companies.

A historic capex surge, thin AI revenues, and extreme index concentration leave investors one disappointment away from a broad‑based equity shock.

AI capex spend is facing greater investor scrutiny amid tech valuation concerns and an increase in borrowing.