BofA Sounds Sell Signal as Bull & Bear Hits 5-Year High

BofA's Bull & Bear Indicator climbed to 9.7, its most extreme reading since 2021, as strategists urge a shift from high-beta AI into defensive stocks.

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Bank of America's closely watched Bull & Bear Indicator surged to 9.7 from 9.4 in the week ending August 5, its highest reading since 2021, prompting the firm's strategists to issue a formal sell signal and urge investors to rotate out of high-beta AI-linked positions and into defensive stocks. Chief strategist Michael Hartnett framed the call as "Retreat/Rotate" rather than "Reload" — recommending capital reallocation from richly priced risk assets toward stable, lower-volatility corners of the market, even as the S&P 500 hovered near record levels.

What Happened

The sell signal, the first issued by the bank since 2021, reflects a convergence of extreme readings across multiple sentiment and flow measures. Broadening equity market momentum, tightening global credit spreads, and surging speculative inflows into high-yield bonds pushed the gauge deep into territory that has historically preceded short-term market turbulence.

U.S. equities still attracted $9.6 billion in net inflows in the week through August 5, per EPFR Global data, underscoring the strength of the buying conviction that the BofA Tower strategy team is now explicitly warning against. Investors continued piling into semiconductor stocks following a run of upbeat earnings — even as the bank's own data pointed to growing fragility beneath the surface.

Historically, of the 17 sell signals triggered by the Bull & Bear Indicator since 2002, global equities have suffered an average drawdown of 2% to 3% in the three months following each reading, with maximum drawdowns ranging between 15% and 20%.

Fund Manager Survey: AI Bubble Tops Tail Risks

The indicator's extreme reading coincided with fresh findings from BofA's Global Fund Manager Survey, conducted July 2 through July 9 among 210 managers overseeing a combined $555 billion in assets.

For the first time, an AI bubble ranked as the single largest tail risk among respondents, cited by 45% of participants — a 17-percentage-point jump from 28% the prior month. The rapid shift in risk perception signals that institutional sentiment has moved materially from concern about missing the AI rally to concern about riding it too long.

Cash allocations slipped to 3.6% of portfolios, tripping BofA's FMS Cash Rule sell signal. The bank has recorded just 16 prior instances of cash holdings at or below that threshold since 2002. A record 82% of surveyed managers identified being long global semiconductors as the most crowded trade in markets — a concentration level that has historically amplified downside when crowded positions unwind.

Recommended Rotation: Out of High-Beta AI, Into Defensives

Hartnett's prescribed rotation targets several sectors. On the sell side, strategists flag high-beta, cyclically exposed names that led the market's advance — commercial banks, industrials, and semiconductor manufacturers that rode the AI infrastructure buildout narrative.

On the buy side, the recommendation centers squarely on defensive stocks with stable earnings, pricing power, and lower correlation to broad risk sentiment. Consumer staples stand out: the XLP consumer staples ETF recorded approximately $582 million in net inflows during July, its first monthly inflow since February, suggesting institutional investors are already pre-positioning. Real estate investment trusts (REITs), small-cap equities, biotechnology, and U.S. dollar exposure also feature in the bank's defensive playbook alongside duration.

Utilities occupy an unusual position in the recommended rotation. Beyond traditional defensive characteristics, utilities carry a structural 2026 catalyst in the form of AI-driven electricity demand from data centers. XLU, the utilities ETF, thus offers investors both cyclical downside protection and indirect exposure to the AI infrastructure buildout's power consumption side — without the valuation risk embedded in direct AI equity holdings.

Market Reaction

Equity markets broadly continued their advance as BofA's warning circulated, a pattern consistent with prior sell signal episodes where price action initially diverges from the indicator before converging. Semiconductor stocks remained well-bid following positive chipmaker earnings, keeping the Nasdaq and SPY near record territory.

Credit markets showed early signs of the spread widening that Hartnett's team flagged as one driver of the elevated indicator reading, though moves remained modest relative to the severity of the bull and bear gauge.

Outlook

BofA's sell signal does not project an imminent collapse in equity markets. The bank's strategists are tactically cautious rather than structurally bearish, with the "Retreat/Rotate" framing deliberately stopping short of a broad risk-off call. The historical record points to a 2% to 3% average drawdown over the three months following such signals.

The AI bubble concern now dominant in the Fund Manager Survey adds asymmetric risk: should any near-term catalyst puncture confidence in AI-linked earnings growth, the unwind of the most crowded semiconductor position on record could amplify the drawdown well beyond the historical average. The rotation toward defensive stocks, consumer staples, utilities, and REITs positions portfolios to absorb that scenario while maintaining equity exposure.

Mentioned tickers: BAC, XLP, XLU, SPY