This page measures annual and cumulative IRR for the portfolio against three benchmarks (ASX 200, NASDAQ-100, S&P 500). Each year's IRR runs from 31 December of the previous year to 31 December of the labelled year. Cash flows include buys, sells, return-of-capital and dividends, on a total-return basis matching how Portfolio View calculates IRR. Benchmark IRRs use Yahoo's adjusted close so distribution reinvestment is baked in. The first fetch takes a couple of minutes (dividend histories plus prices); results cache in this browser so subsequent visits load instantly.