Where to Put $1 Million for the Next 5–5–10 Years (June 2026): A Research-Backed Investment Allocation Guide

If you suddenly had $1 million to invest for the next 5 to 10 years, how would the world's top financial researchers and endowment managers allocate it? This guide synthesizes evidence from Harvard, Yale, Wharton, Vanguard, and BlackRock to build a research-backed portfolio designed for long-term wealth preservation and growth.