How we Calculate Historical Performance
For Funds
Daily NAVPS information is used to calculate historical returns and all distributions are assumed to be re-invested. The returns are pre-calculated by our data providers and sent over to us.
For Stocks
End-of-day market prices are adjusted for splits, then used in the historical returns calculations. The dividends are assumed to be re-invested, as per the following:

For Portfolios
The formula to calculate portfolios performance is a weighted average:
