Documentation of every index, every test, every result.
Explore the full research database — all 74 indexes analyzed →Full description of the analysis framework: universe, three filters (outperformance, Sharpe above 0.70, structural defensibility), and how the seven official indexes survived (six on performance criteria, plus CI-WORLD500 as broad benchmark).
On the choice of NYU Stern's annual return series and why it remains the most credible long-horizon reference series for US equity returns.
Why high-volatility positional indexes can outperform low-volatility alternatives for disciplined long-horizon investors. The mathematics of dollar-cost averaging into volatile assets.
Concentration consistently adds return — but with measurable volatility cost. The CI-WORLD3 to CI-WORLD100 curve is monotonic over 15 years.
Equal-weighted exposure across ten deciles produces the highest risk-adjusted return in our catalog. Why structural distribution beats single-tier concentration on a Sharpe basis.
Source: Damodaran NYU Stern (S&P 500 historical returns, 1928–2025).