BofA’s Hartnett Says Magnificent 7 Stock Bubble Is Still Growing

Bank of America strategists, led by Michael Hartnett, contend that the Magnificent 7 stock bubble has further room to grow, advising investors to position for continued gains. Their analysis of 10 historical equity bubbles, which averaged 244% trough-to-peak returns, suggests that the Magnificent 7's current 223% rise from its March 2023 low indicates ongoing upside potential.

Analysis

Bank of America strategists, led by Michael Hartnett, posit that the valuation bubble in the Magnificent Seven technology stocks has further room to expand. This conclusion is derived from a historical analysis of 10 major equity bubbles since the early 20th century, which found an average trough-to-peak price appreciation of 244%. With the Magnificent Seven cohort having risen 223% from its March 2023 low, BofA's model suggests the group has 'more to go' before reaching a typical peak valuation seen in past market bubbles. The note advises investors to position for these potential continued gains, framing the current market environment as a late-stage but not yet concluded rally in Big Tech.

Key Decisions for Investors

• Investors aligned with BofA's historical pattern analysis could consider maintaining or increasing exposure to the Magnificent Seven, as the current 223% rally remains below the 244% average peak gain identified in past bubbles.
• Given the explicit characterization of the rally as a 'bubble', it is critical to manage positions with an awareness of heightened volatility and the inherent risk of a sharp correction once momentum shifts.
• The 244% trough-to-peak gain level should be monitored as a key technical reference point; approaching this historical average may serve as a signal to re-evaluate the risk-reward profile of Big Tech positions according to this framework.