Bank of America Warns Mega-IPOs Could Push Tech Weighting to 48%
Bank of America strategist Michael Hartnett warns planned mega-IPOs from SpaceX and OpenAI could boost technology’s S&P 500 weighting from over 44% to roughly 48%, surpassing bubble-era concentrations. He cautions this level of market concentration could amplify pullback risks for financial stocks such as Bank of America.
1. Bubble Warning from Bank of America
Michael Hartnett warns that planned mega-IPOs from SpaceX and OpenAI could push technology weighting in major equity indexes beyond bubble-era levels, comparing current concentration to peaks in the Roaring ’20s, Nifty 50 in the ’70s and TMT stocks in the ’90s.
2. Tech's Rising Benchmark Weighting
Technology already comprises over 44% of the S&P 500; Hartnett projects that the addition of mega-IPOs could lift this to roughly 48%, surpassing historical bubble thresholds and constraining asset allocators hampered by risk limits.
3. Yield-sensitive ETF Indicators
Hartnett identifies two State Street exchange-traded funds as barometers of bond yield impacts—a biotech ETF falling to $120 would signal continued yield rises, while a retail ETF climbing to $85 would indicate delayed bond-related shocks.
4. Risks for Financial Stocks
The strategist cautions that extreme market concentration heightens pullback risks, potentially exacerbating volatility in financial names including Bank of America, as equity allocations reach record highs among fund managers.