Equity markets have continued to advance in recent weeks, with the S&P 500 trading near record highs following a rare nine-week winning streak. Strong corporate earnings, particularly among AI-related companies, and optimism surrounding a potential agreement with Iran have helped support investor sentiment. At the same time, valuations remain elevated by historical standards, oil prices are hovering near $100 per barrel, and the Strait of Hormuz remains closed. With markets seemingly pricing in a favorable outlook, some investors are asking whether expectations have become too optimistic.
While valuations deserve attention, we believe they should not be overemphasized. Metrics such as the price-to-earnings (P/E) ratio can provide insight into long-term return potential and downside risk, but they have historically been poor indicators of short-term market direction. The S&P 500 currently trades at roughly 21 times earnings, a level that can be supported by continued earnings growth and a resilient U.S. economy. However, further gains will likely depend on inflation, energy prices, and interest rates evolving in a favorable direction. Unless those factors improve, returns during the second half of the year may be more modest and accompanied by periods of increased volatility.
Against this backdrop, artificial intelligence remains one of the market's most important drivers. Technology companies, particularly the large hyperscalers, continue to report strong earnings growth while significantly increasing investment in AI infrastructure. Recent moves in semiconductor and IT hardware stocks suggest investors may still be underestimating the scale of spending taking place across the industry. Capital expenditures tied to AI are expected to exceed $750 billion this year, representing an increase of roughly 50% since the beginning of 2026.
Despite the enthusiasm surrounding AI, skepticism remains widespread regarding the magnitude and timing of future productivity gains. That skepticism could leave room for upside surprises if the technology delivers on expectations. At the same time, substantial AI-related investments have weighed on free cash flow, creating risk if anticipated returns fail to materialize as quickly as expected.
Looking ahead, the market narrative is likely to remain centered on the relationship between valuations and earnings growth. Elevated valuations and persistent inflation may limit the market's ability to move meaningfully higher through multiple expansion alone, placing greater importance on continued earnings growth. AI remains a powerful long-term tailwind for economic activity and corporate profitability, but expectations have risen considerably. As always, maintaining a disciplined, diversified investment strategy remains the most effective way to navigate an environment where both opportunities and risks are elevated.
As always, please let me know if there's anything I can do to help you, your family, or someone you care about.
Sincerely,
Ed
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All data is provided as of June 1, 2026.
The P/E ratio (price-to-earnings ratio) is a measure of the price paid for a share relative to the annual net income or profit earned by the firm per share. It is a financial ratio used for valuation: a higher P/E ratio means that investors are paying more for each unit of net income, so the stock is more expensive compared to one with lower P/E ratio.
Earnings per share (EPS) is the portion of a company’s profit allocated to each outstanding share of common stock. EPS serves as an indicator of a company’s profitability. Earnings per share is generally considered to be the single most important variable in determining a share’s price. It is also a major component used to calculate the price-to-earnings valuation ratio.
All index data from FactSet.
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