SKN | Bank of America Flags an Overlooked 2027 Equity Risk as AI Financing Comes Under Pressure

 Key Points:

• Bank of America strategist Michael Hartnett warns that investors may be underestimating risks to the stock market heading into 2027, despite strong recent gains.
• The bank’s concern centres on the financing behind the AI investment boom, including spending on semiconductors, data centres and electricity infrastructure as borrowing costs rise and lenders become more selective.
• In Bank of America’s October fund-manager survey, only 6% of respondents expected a hard economic landing, highlighting the limited extent of pessimism captured by that measure.

Bank of America Questions Whether Market Optimism Reflects Financing Risks

Bank of America is drawing attention to a potential vulnerability beneath the equity market’s strong performance: the dependence of the artificial-intelligence investment boom on continued access to financing. Strategist Michael Hartnett believes investors may be overlooking the consequences if raising capital becomes more difficult as the market approaches 2027.

The warning comes after a substantial rally. The S&P 500 closed at 7,623.68 on October 22, up 11.4% for the year and just 2.5% below its October 6 record. Yet its advance over the preceding three months was a more modest 3%, suggesting that recent momentum had cooled.

For Bank of America, the headline index performance does not tell the entire story. The bank’s concern is whether investors have adequately considered the financial conditions required to sustain the expansion that has helped support equity valuations.

The AI Investment Boom Creates a Financing Dependency

AI infrastructure requires substantial expenditure on chips, data centres and electricity. According to the supplied report, much of this expansion intersects with the bond market, where borrowing costs are rising and lenders are becoming more selective.

That relationship is central to Hartnett’s warning. If financing becomes more expensive or less available, companies planning large infrastructure investments could face tighter constraints. The potential implications extend beyond technology businesses to the wider market, particularly where investor expectations depend on continued AI-related spending and growth.

However, the available information does not quantify how much investment could be delayed or identify which companies would face the greatest pressure. The risk identified by Bank of America is therefore a potential vulnerability, not evidence that an investment slowdown has already occurred.

Low Recession Expectations May Leave Investors Exposed

Bank of America’s October fund-manager survey found that only 6% of respondents expected a hard economic landing. Hartnett’s concern is that the prevailing level of optimism may leave markets vulnerable if financing conditions deteriorate or economic outcomes disappoint.

The survey figure measures expectations among respondents; it does not establish the probability of a recession. Nevertheless, it provides context for the bank’s broader warning that investors may not be fully positioned for less favourable conditions.

What Bank of America’s Warning Means for Investors

Hartnett outlines three possible paths for 2027, according to the supplied report, but the excerpt does not detail those scenarios. It would therefore be premature to attribute specific outcomes or probability estimates to the bank.

For high-net-worth investors, the practical implication is to look beyond index performance and examine the assumptions supporting portfolio valuations. Financing availability, borrowing costs and the sustainability of AI-related capital expenditure are important indicators to monitor as 2027 approaches.

Bank of America’s warning is not a prediction that equities must fall. It is a reminder that strong markets can remain exposed to risks that are less visible during a rally. For a confidential discussion regarding your cross-border banking structure and global wealth management arrangements, contact our senior advisory team.