S&P 500 Holds Steady Amid AI-Driven Growth and Rising Bond Yields

The S&P 500 has remained near the top of its May-July trading range, weathering a brief, modest pullback without breaking lower. Professional investors continue to dominate equity exposure, with surveys from Goldman Sachs, State Street, the National Association of Active Investment Managers and Bank of America indicating that asset allocators are “stocked up” for the fall. The Leuthold Group’s Courage/Fear Ratio—a measure contrasting aggressive small-cap, emerging-market and cyclical bets with defensive assets such as the U.S. dollar and Treasurys—has climbed to an approximately 18-year high, underscoring a prevailing risk-on stance.

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Earnings growth remains the strongest bullish catalyst, even as analysts note that some large-cap profits may be inflated by forward-looking AI capital-expenditure (capex). Barclays equity strategist Venu Krishna observed that recent retail participation has softened, suggesting that the latest wave of “fear-of-missing-out” buying is now driven mainly by institutional investors. AI-related spending continues to rise, with vendors such as Dell and Broadcom raising guidance throughout earnings season, reinforcing confidence in the sector’s momentum.

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Ten-year Treasury yields have risen toward 4.8%, a level described by Deutsche Bank’s global-macro head Jim Reid as a “normalization shock” that returns yields to pre-global-financial-crisis ranges. While higher yields traditionally pressure equities, Reid argues that current levels are compatible with a robust stock market because many recent bonds now trade below issue price, making outright negative returns on government bonds harder to achieve. The yield climb mirrors the early-2000s environment, yet the rapid ascent from sub-1 % six years ago differentiates today’s dynamics.

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Despite the yield rise, a traditional 60/40 stock-bond allocation remains viable. Historical data show that the Vanguard Balanced Index Fund (a 60/40 benchmark) delivered a 14.8 % annualized return from 1990-2000, capturing roughly 69 % of the S&P 500’s return in that period. Over the past decade, the same fund has captured about 61 % of S&P returns, reflecting higher opportunity costs as bond yields start from a higher base. With the next Federal Reserve meeting roughly ten days away and inflation data poised to influence rate-path expectations, investors are weighing whether to maintain equity exposure or adjust allocations amid the evolving yield environment.

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