Citi strategists say a narrowing of index performance doesn't mean the market won't rise

Citi strategists observe that recent S&P 500 gains are highly concentrated, with 75% of returns derived from just five stocks, a historically elevated level. While acknowledging that such market narrowing often precedes increased volatility and potential down-markets, their analysis suggests previous instances have seen the index rise approximately 10% over the subsequent 12 months. Despite risks like high valuations, Citi maintains a constructive outlook, forecasting single-digit global equity gains through mid-2026, driven by profit growth and monetary easing, and recommends an overweight position in European, emerging market, financials, and U.S./global tech stocks.

Analysis

Citi strategists highlight a significant narrowing of S&P 500 performance, with approximately 75% of recent U.S. index returns derived from just five stocks (Nvidia, Microsoft, Palantir, Meta, Broadcom), a historically elevated concentration. Despite this, their analysis indicates that previous periods of market narrowing (defined as fewer than 40% of S&P 500 stocks above their 200-day moving average) have historically seen the index rise by roughly 10% over the subsequent 12 months.

While acknowledging that elevated narrowness often precedes increased volatility, with annualized daily volatility potentially rising from mid-teens to over 25%, Citi maintains a constructive outlook. They anticipate global equities will achieve modest single-digit gains through mid-2026, driven by solid profit growth, a resilient global economy, and expected monetary policy easing from the Federal Reserve.

However, Citi also identifies potential risks, including elevated stock valuations, emerging "cracks in the soft-landing narrative," and increasing difficulty for companies to surpass analyst consensus earnings estimates. Their global-equity strategy retains a cyclical tilt, recommending an overweight position in European stocks (excluding the U.K.), emerging markets, financials, and U.S./global tech stocks.

Key Decisions for Investors

• Investors should acknowledge the market's concentrated gains and increased volatility, but recognize that historical precedents suggest potential for continued index appreciation despite these conditions.
• Consider overweighting European stocks (ex-U.K.), emerging markets, financials, and U.S./global tech, aligning with Citi's cyclical tilt and sector preferences for anticipated modest gains.
• Monitor key risk factors such as elevated valuations and the evolving economic narrative, as these could temper the projected single-digit returns for global equities through mid-2026.