Citigroup Downgrades US Equities and Tech to Neutral, Upgrades Europe Amid AI Turbulence

Citigroup strategists downgraded U.S. equities to neutral from overweight on Monday and lowered their stance on global and European technology to neutral as well, while raising European equities excluding the UK to overweight. The team, led by Beata Manthey, also upgraded global health care to overweight, where it joins materials, and moved European food and beverage to overweight, building what the strategists describe as a barbell of economically linked cyclicals and defensive stocks.

The call follows a sharp selloff in AI-linked stocks that evaporated $3 trillion of market value from S&P 500 companies. The S&P 500 posted its biggest weekly loss since April 2025, and $2.3 trillion was wiped off the Nasdaq 100 last Thursday alone, while Europe's Stoxx 600 ended the week 0.2% higher. Reuters reported that Democratic gains in last week's U.S. midterm elections, including in states where opposition to new data centers has grown, fueled concerns that tighter regulation could slow the AI infrastructure buildout. "We worry that positioning on key indices, such as the Nasdaq, could reset lower into net-short territory," Manthey wrote.

Citi framed the move as tactical rather than a break with its constructive view: the strategists said they want cleaner positioning and more stable sentiment around AI stocks before re-establishing an overweight, and that their market targets for next year remain positive. Investing.com reported Citi's estimate that another 5% drop would be needed for positioning to turn properly negative. Europe's appeal is its lower exposure to tech volatility and greater sensitivity to falling oil prices. Goldman Sachs strategists cited in the same Bloomberg report put AI-linked stocks at some 40% of the S&P 500, against about 15% of the Stoxx 600 for AI infrastructure names.

For investors, the key signals are whether Nasdaq positioning actually turns net short, how quickly AI sentiment stabilizes after the midterm-driven regulatory scare, and whether health care and European cyclicals keep outperforming. A Citi move back to overweight would be the clearest sign that the strategists see the reset as complete.