I always wanted a portfolio tracker that encouraged slow patience and discouraged bad investor behaviour. Something without the real-time red and green price ticks twitching up and down, which I think encourage many investors to Act Now, to make a trade quick quick. And which for many of us will be a bad thing because, well, we know nothing. I want something that will encourage me to hold the line, to be patient, to minimise trades, to not try time the market or sell high/buy low. Measure progress toward my goal, rather than against other investors’ performance or the market.
Have used a Google spreadsheet for ages to do this, pulling in current stock prices from googlefinance, though since googlefinance was updated a month or so ago, it won’t get current prices for UK mutual funds 