Big Tech's sustained outperformance presents a portfolio anomaly. These companies are simultaneously the largest market components and among the fastest-growing, a rare combination that breaks historical patterns where size implies maturity and slower growth, forcing managers to adapt.

Market-cap-weighted indexes create a perverse momentum loop. As a stock's price rises, its weight in the index increases, forcing new passive capital to buy more of it at inflated prices. This mechanism is the structural opposite of a value-oriented 'buy low, sell high' discipline.

Judging investment skill requires observing performance through both bull and bear markets. A fixed period, like 5 or 10 years, can be misleading if it only captures one type of environment, often rewarding mere risk tolerance rather than genuine ability.

Emerging vs. developed market outperformance typically runs in 7-10 year cycles. The current 14-year cycle of EM underperformance is historically long, suggesting markets are approaching a key inflection point driven by a weakening dollar, cheaper currencies, and accelerating earnings growth off a low base.

Instead of using current market-cap weightings, a "forward cap" strategy allocates capital based on extrapolated macroeconomic trends. This means overweighting a sector like tech based on its projected future dominance, essentially "skating to where the puck is going."

The underperformance of active managers in the last decade wasn't just due to the rise of indexing. The historic run of a few mega-cap tech stocks created a market-cap-weighted index that was statistically almost impossible to beat without owning those specific names, leading to lower active share and alpha dispersion.

After years of piling into a few dominant mega-cap tech stocks, large asset managers have reached a point of peak centralization. To generate future growth, they will be forced to allocate capital to different, smaller pockets of the market, potentially signaling a broad market rotation.

While indexing made competition tougher, the true headwind for active managers was the unprecedented, concentrated performance of a few tech giants. Not owning them was statistically devastating, while owning them reduced active share, creating a no-win scenario for many funds.

Market cap indexing acts like a basic trend-following system by buying more of what's rising. However, its Achilles' heel is the lack of a valuation anchor, causing investors to over-concentrate in expensive assets at market peaks. In high-valuation environments, almost any other weighting method, like equal-weight or value, is likely to outperform over the long term.