10-Stock Concentration vs. VOO: Why Psychology, Not Strategy, Determin
Key MetricsVOO 5-year cumulative return: +89.6% (13.4% annual CAGR)SCHD 5-year cumulative return: +60.0% (9.9% annual CAGR) — dividend yield 3.09%Standard deviation gap between 10-stock concentration and broad-market diversification: average 4.2xInvestor psychology variables (stop-loss experience, loss aversion, rebalancing discipline) determine realized returns: execution accounts for 60%+ of outcome variance versus strategy choice The Concentration Game: Psychology Over Mathematics Monthly $30K investment 20-year compound growth simulation 20-year monthly investment simulation: concentrated equity vs. broad index returns Debates between concentrated single-stock portfolios (10 stocks) and broad-market ETFs such as VOO (Vanguard S&P 500) are rarely technical. They are rarely mathematical. They are psychological. ...