Contrary to popular belief, earnings growth has a very low correlation with decadal stock returns. The primary driver is the change in the valuation multiple (e.g., P/E ratio expansion or contraction). The correlation between 10-year real returns and 10-year valuation changes is a staggering 0.9, while it is tiny for earnings growth.

Traditional analysis links real GDP growth to corporate profits. However, in an inflationary period, strong nominal growth can flow directly to revenues and boost profits even if real output contracts, especially if wage growth lags. This makes nominal figures a better indicator for equity markets.

Historically, US earnings outgrew the world by 1%. Post-GFC, this widened to 3%. Investors have extrapolated this recent, higher rate as the new normal, pushing the US CAPE ratio to nearly double that of non-US markets. This represents a historically extreme valuation based on a potentially temporary growth advantage.

Contrary to the growth narrative, the MSCI China index returned just 3.4% over the last decade with over 24% volatility. During the same period, the emerging market ex-China index delivered a higher return of 4.8% with significantly lower volatility (17.5%), highlighting structural headwinds in China for investors.

Following a 30-40% valuation surge in 2025, China's market is expected to stabilize. Further upside in 2026 will depend on corporate earnings, projected at a modest 6%, signaling a shift from a valuation-driven to an earnings-driven market that requires a different investment approach.

Financial models struggle to project sustained high growth rates (>30% YoY). Analysts naturally revert to the mean, causing them to undervalue companies that defy this and maintain high growth for years, creating an opportunity for investors who spot this persistence.

The stock market is not overvalued based on historical metrics; it's a forward-looking mechanism pricing in massive future productivity gains from AI and deregulation. Investors are betting on a fundamentally more efficient economy, justifying valuations that seem detached from today's reality.

Contrary to a common myth, high equity valuations do not reliably revert to a historical mean. An analysis of 32 different valuation scenarios found only one case of statistically significant mean reversion. Structural economic shifts, like reduced GDP volatility since the 1990s, justify higher sustained valuation levels.

Goldman Sachs Wealth Management questions China's official ~5% GDP growth, citing respected third-party analysis from firms like the Rhodium Group suggesting real growth is closer to 1-3%. This fundamental skepticism underpins their cautious stance on Chinese equities, despite recent market rallies.