Economic Review: Q4 2026

High inflation and ten-year yields above 5% make the equity backdrop more fragile, but strong earnings and AI-led investment can continue to support stocks if growth holds.

• Silvercrest’s analysis of nearly 700 monthly observations finds median monthly S&P 500 returns of 1.80% in the low-inflation/low-yield regime, 1.30% in low inflation/high yields, 0.75% in high inflation/low yields, and 0.90% in high inflation/high yields.
• Earlier in 2026, inflation was below 3% and ten-year yields were below 5%, but current conditions are classified as high inflation/high yields; equities still posted positive returns in 58% of months in that regime, albeit with higher volatility and the worst negative month.
• Consensus S&P 500 earnings estimates for 2027 have reached $417 per share, implying an 18.4x P/E at recent market levels; Silvercrest expects earnings to remain the main driver of equity direction.
• Economic growth remains above 2%, employment is expanding and layoffs are limited, but average hourly earnings are rising 3.1% against 3.4% inflation, leaving hourly-paid consumers behind in real terms; growth below 1.5% would put earnings in the danger zone.
• AI data-center investment is supporting capital expenditure, employment and growth, but debt-funded construction must eventually produce revenue and productivity gains; delays could reduce projected returns on capital, while credit markets remain broadly strong.

Takeaway: Investors should remain optimistic but careful, keep risk at a neutral level, diversify beyond U.S. large-cap exposure, and accept credit risk only after security-level research; bonds yielding above 5% can provide income and safety when held to maturity.